NEET 2017 · Biology

NEET 2017 Biology Questions with Solutions

The NEET 2017 paper had 91 Biology questions from 25 chapters. By section: 54 Botany and 37 Zoology.

The Living World had the most questions (8), followed by Photosynthesis in Higher Plants, Principles of Inheritance and Variation and Structural Organisation in Animals with 7 each.

6 questions below have the answer and explanation free; the other 85 are in Premium.

Practise NEET 2017 Biology free

Biology questions: 91
Chapters covered: 25
Solved free here: 6 of 91
Easy / Medium / Hard: 41 / 44 / 6

Difficulty is NEET MIND's own tag for each question.

Chapter-wise: NEET 2017 Biology

How many questions each chapter had in NEET 2017. Open a chapter for its questions from every year.

All 91 NEET 2017 Biology questions

In paper order. Try each one, then open the answer where it is shown.

Question 1 (NEET 2017, Q1)
Molecular Basis of InheritanceBotanyEasy
The final proof for DNA as the genetic material came from the experiments of
1. Option A: Hargobind Khorana
2. Option B: Griffith
3. Option C: Hershey and Chase
4. Option D: Avery, McLeod and McCarty
The answer and explanation for this question are in NEET MIND Premium.
Question 2 (NEET 2017, Q2)
Molecular Basis of InheritanceBotanyEasy
Spliceosomes are not found in cells of
1. Option A: Bacteria
2. Option B: Plants
3. Option C: Fungi
4. Option D: Animals
The answer and explanation for this question are in NEET MIND Premium.
Question 3 (NEET 2017, Q3)
Locomotion and MovementZoologyEasy
The pivot joint between atlas and axis is a type of
1. Option A: Saddle joint
2. Option B: Fibrous joint
3. Option C: Cartilaginous joint
4. Option D: Synovial joint
Show answer & explanationHide answer & explanation
Correct answer: (D) Synovial joint
Explanation
Pivot joint is a type of synovial joint that allows rotational movement between atlas and axis vertebrae.
Question 4 (NEET 2017, Q4)
Cell: The Unit of LifeBotanyMedium
The association of histone H1 with a nucleosome indicates:
1. Option A: The DNA double helix is exposed
2. Option B: Transcription is occurring
3. Option C: DNA replication is occurring
4. Option D: The DNA is condensed into a chromatin fibre
The answer and explanation for this question are in NEET MIND Premium.
Question 5 (NEET 2017, Q5)
Structural Organisation in AnimalsZoologyEasy
Which of the following is made up of dead cells?
1. Option A: Phloem
2. Option B: Xylem parenchyma
3. Option C: Collenchyma
4. Option D: Phellem
The answer and explanation for this question are in NEET MIND Premium.
Question 6 (NEET 2017, Q6)
Human ReproductionZoologyMedium
Select the correct route for the passage of sperms in male frogs:
1. Option A: Testes → Vasa efferentia → Kidney → Bidder's canal → Urinogenital duct → Cloaca
2. Option B: Testes → Bidder's canal → Kidney → Vasa efferentia → Urinogenital duct → Cloaca
3. Option C: Testes → Vasa efferentia → Kidney → Seminal vesicle → Urinogenital duct → Cloaca
4. Option D: Testes → Vasa efferentia → Bidder's canal → Ureter → Cloaca
The answer and explanation for this question are in NEET MIND Premium.
Question 7 (NEET 2017, Q7)
Body Fluids and CirculationZoologyMedium
Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature? (a) They do not need to reproduce (b) They are somatic cells (c) They do not metabolize (d) All their internal space is available for oxygen transport Options:
1. Option A: (b) and (c)
2. Option B: Only (d)
3. Option C: Only (a)
4. Option D: (a), (c) and (d)
The answer and explanation for this question are in NEET MIND Premium.
Question 8 (NEET 2017, Q8)
Principles of Inheritance and VariationBotanyEasy
Homozygous purelines in cattle can be obtained by
1. Option A: Mating of individuals of different species
2. Option B: Mating of related individuals of same breed
3. Option C: Mating of unrelated individuals of same breed
4. Option D: Mating of individuals of different breed
The answer and explanation for this question are in NEET MIND Premium.
Question 9 (NEET 2017, Q9)
Chemical Coordination and IntegrationZoologyEasy
A temporary endocrine gland in the human body is
1. Option A: Corpus allatum
2. Option B: Pineal gland
3. Option C: Corpus cardiacum
4. Option D: Corpus luteum
The answer and explanation for this question are in NEET MIND Premium.
Question 10 (NEET 2017, Q10)
The Living WorldBotanyEasy
Viroids differ from viruses in having
1. Option A: RNA molecules without protein coat
2. Option B: DNA molecules with protein coat
3. Option C: DNA molecules without protein coat
4. Option D: RNA molecules with protein coat
The answer and explanation for this question are in NEET MIND Premium.
Question 11 (NEET 2017, Q11)
Excretory Products and Their EliminationZoologyMedium
A decrease in blood pressure/volume will not cause the release of
1. Option A: ADH
2. Option B: Renin
3. Option C: Atrial Natriuretic Factor
4. Option D: Aldosterone
Show answer & explanationHide answer & explanation
Correct answer: (C) Atrial Natriuretic Factor
Explanation
A decrease in blood pressure or blood volume stimulates the release of renin, ADH and aldosterone. Atrial Natriuretic Factor (ANF) is released when blood pressure increases and it lowers blood pressure by causing vasodilation and inhibiting RAAS.
Question 12 (NEET 2017, Q12)
The Living WorldBotanyEasy
An example of colonial alga is
1. Option A: Spirogyra
2. Option B: Chlorella
3. Option C: Volvox
4. Option D: Ulothrix
The answer and explanation for this question are in NEET MIND Premium.
Question 13 (NEET 2017, Q13)
Structural Organisation in AnimalsZoologyMedium
The morphological nature of the edible part of coconut is
1. Option A: Pericarp
2. Option B: Perisperm
3. Option C: Cotyledon
4. Option D: Endosperm
The answer and explanation for this question are in NEET MIND Premium.
Question 14 (NEET 2017, Q14)
Microbes in Human WelfareBotanyEasy
Which of the following is correctly matched for the product produced by them?
1. Option A: Saccharomyces cerevisiae : Ethanol
2. Option B: Acetobacter aceti : Antibiotics
3. Option C: Methanobacterium : Lactic acid
4. Option D: Penicillium notatum : Acetic acid
The answer and explanation for this question are in NEET MIND Premium.
Question 15 (NEET 2017, Q15)
Reproductive HealthZoologyMedium
Match the following sexually transmitted diseases (Column-I) with their causative agent (Column-II) and select the correct option.
1. Option A: Option (1)
2. Option B: Option (2)
3. Option C: Option (3)
4. Option D: Option (4)
The answer and explanation for this question are in NEET MIND Premium.
Question 16 (NEET 2017, Q16)
The Living WorldBotanyEasy
In case of poriferans the spongocoel is lined with flagellated cells called
1. Option A: Mesenchymal cells
2. Option B: Ostia
3. Option C: Oscula
4. Option D: Choanocytes
The answer and explanation for this question are in NEET MIND Premium.
Question 17 (NEET 2017, Q17)
Principles of Inheritance and VariationBotanyEasy
Among the following characters, which one was not considered by Mendel in his experiments on pea?
1. Option A: Pod – Inflated or Constricted
2. Option B: Stem – Tall or Dwarf
3. Option C: Trichomes – Glandular or non-glandular
4. Option D: Seed – Green or Yellow
The answer and explanation for this question are in NEET MIND Premium.
Question 18 (NEET 2017, Q18)
Photosynthesis in Higher PlantsBotanyMedium
Identify the wrong statement in context of heartwood.
1. Option A: It comprises dead elements with highly lignified walls
2. Option B: Organic compounds are deposited in it
3. Option C: It is highly durable
4. Option D: It conducts water and minerals efficiently
The answer and explanation for this question are in NEET MIND Premium.
Question 19 (NEET 2017, Q19)
Molecular Basis of InheritanceBotanyMedium
During DNA replication, Okazaki fragments are used to elongate
1. Option A: The lagging strand away from the replication fork
2. Option B: The leading strand towards replication fork
3. Option C: The lagging strand towards replication fork
4. Option D: The leading strand away from replication fork
The answer and explanation for this question are in NEET MIND Premium.
Question 20 (NEET 2017, Q20)
Microbes in Human WelfareBotanyEasy
Mycorrhizae are the example of
1. Option A: Mutualism
2. Option B: Fungistasis
3. Option C: Amensalism
4. Option D: Antibiosis
The answer and explanation for this question are in NEET MIND Premium.
Question 21 (NEET 2017, Q21)
Cell: The Unit of LifeBotanyEasy
Which of the following RNAs should be most abundant in animal cell?
1. Option A: mi-RNA
2. Option B: r-RNA
3. Option C: t-RNA
4. Option D: m-RNA
The answer and explanation for this question are in NEET MIND Premium.
Question 22 (NEET 2017, Q22)
Biotechnology: Principles and ProcessesZoologyMedium
The process of separation and purification of expressed protein before marketing is called
1. Option A: Postproduction processing
2. Option B: Upstream processing
3. Option C: Downstream processing
4. Option D: Bioprocessing
The answer and explanation for this question are in NEET MIND Premium.
Question 23 (NEET 2017, Q23)
Cell: The Unit of LifeBotanyEasy
Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?
1. Option A: Nostoc
2. Option B: Bacillus
3. Option C: Pseudomonas
4. Option D: Mycoplasma
The answer and explanation for this question are in NEET MIND Premium.
Question 24 (NEET 2017, Q24)
Cell: The Unit of LifeBotanyEasy
Which of the following components provides sticky character to the bacterial cell?
1. Option A: Glycocalyx
2. Option B: Cell wall
3. Option C: Nuclear membrane
4. Option D: Plasma membrane
The answer and explanation for this question are in NEET MIND Premium.
Question 25 (NEET 2017, Q25)
Photosynthesis in Higher PlantsBotanyMedium
With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?
1. Option A: Tomato is a greenhouse crop which can be grown in CO $_2$ -enriched atmosphere for higher yield
2. Option B: Light saturation for CO $_2$ fixation occurs at 10% of full sunlight
3. Option C: Increasing atmospheric CO $_2$ concentration upto 0.05% can enhance CO $_2$ fixation rate
4. Option D: C $_3$ plants responds to higher temperatures with enhanced photosynthesis while C $_4$ plants have much lower temperature optimum
The answer and explanation for this question are in NEET MIND Premium.
Question 26 (NEET 2017, Q26)
Body Fluids and CirculationZoologyMedium
Which of the following options best represents the enzyme composition of pancreatic juice?
1. Option A: Lipase, amylase, trypsinogen, procarboxypeptidase
2. Option B: Amylase, peptidase, trypsinogen, rennin
3. Option C: Amylase, pepsin, trypsinogen, maltase
4. Option D: Peptidase, amylase, pepsin, rennin
The answer and explanation for this question are in NEET MIND Premium.
Question 27 (NEET 2017, Q27)
BiomoleculesZoologyEasy
Which one of the following statements is correct, with reference to enzymes?
1. Option A: Holoenzyme = Coenzyme + Cofactor
2. Option B: Apoenzyme = Holoenzyme + Coenzyme
3. Option C: Holoenzyme = Apoenzyme + Coenzyme
4. Option D: Coenzyme = Apoenzyme + Holoenzyme
The answer and explanation for this question are in NEET MIND Premium.
Question 28 (NEET 2017, Q28)
Molecular Basis of InheritanceBotanyMedium
If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of RNA becomes 998 bases, how many codons will be altered?
1. Option A: 333
2. Option B: 1
3. Option C: 11
4. Option D: 33
The answer and explanation for this question are in NEET MIND Premium.
Question 29 (NEET 2017, Q29)
Organisms and PopulationsBotanyMedium
Asymptote in a logistic growth curve is obtained when
1. Option A: K < N
2. Option B: The value of r approaches zero
3. Option C: K = N
4. Option D: K > N
The answer and explanation for this question are in NEET MIND Premium.
Question 30 (NEET 2017, Q30)
The Living WorldBotanyMedium
Select the mismatch
1. Option A: Equisetum – Homosporous
2. Option B: Pinus – Dioecious
3. Option C: Cycas – Dioecious
4. Option D: Salvinia – Heterosporous
The answer and explanation for this question are in NEET MIND Premium.
Question 31 (NEET 2017, Q31)
Cell Cycle and Cell DivisionBotanyHard
Anaphase promoting complex (APC) is a protein degradation machinery necessary for proper mitosis of animal cells. If APC is defective in a human cell, which of the following is expected to occur?
1. Option A: Recombination of chromosome arms will occur
2. Option B: Chromosomes will not condense
3. Option C: Chromosomes will be fragmented
4. Option D: Chromosomes will not segregate
The answer and explanation for this question are in NEET MIND Premium.
Question 32 (NEET 2017, Q32)
EcosystemBotanyEasy
Which ecosystem has the maximum biomass?
1. Option A: Lake ecosystem
2. Option B: Forest ecosystem
3. Option C: Grassland ecosystem
4. Option D: Pond ecosystem
The answer and explanation for this question are in NEET MIND Premium.
Question 33 (NEET 2017, Q33)
Photosynthesis in Higher PlantsBotanyMedium
Zygotic meiosis is characteristic of
1. Option A: Chlamydomonas
2. Option B: Marchantia
3. Option C: Fucus
4. Option D: Funaria
The answer and explanation for this question are in NEET MIND Premium.
Question 34 (NEET 2017, Q34)
Chemical Coordination and IntegrationZoologyEasy
Hypersecretion of Growth Hormone in adults does not cause further increase in height, because
1. Option A: Muscle fibres do not grow in size after birth
2. Option B: Growth Hormone becomes inactive in adults
3. Option C: Epiphyseal plates close after adolescence
4. Option D: Bones lose their sensitivity to Growth Hormone in adults
The answer and explanation for this question are in NEET MIND Premium.
Question 35 (NEET 2017, Q35)
Body Fluids and CirculationZoologyMedium
Frog's heart when taken out of the body continues to beat for some time. Select the best option from the following statements: (a) Frog is a poikilotherm (b) Frog does not have any coronary circulation (c) Heart is "myogenic" in nature (d) Heart is autoexcitable
1. Option A: (c) & (d)
2. Option B: Only (c)
3. Option C: Only (d)
4. Option D: (a) & (b)
The answer and explanation for this question are in NEET MIND Premium.
Question 36 (NEET 2017, Q36)
Human Health and DiseaseZoologyMedium
Transplantation of tissues/organs fails often due to non-acceptance by the patient's body. Which type of immune-response is responsible for such rejections?
1. Option A: Physiological immune response
2. Option B: Autoimmune response
3. Option C: Cell-mediated immune response
4. Option D: Hormonal immune response
The answer and explanation for this question are in NEET MIND Premium.
Question 37 (NEET 2017, Q37)
Principles of Inheritance and VariationBotanyMedium
Thalassemia and sickle cell anaemia are caused due to a problem in globin molecule synthesis. Select the correct statement.
1. Option A: Sickle cell anemia is due to a quantitative problem of globin molecules
2. Option B: Both are due to a qualitative defect in globin chain synthesis
3. Option C: Both are due to a quantitative defect in globin chain synthesis
4. Option D: Thalassemia is due to less synthesis of globin molecules
The answer and explanation for this question are in NEET MIND Premium.
Question 38 (NEET 2017, Q38)
The Living WorldBotanyMedium
An important characteristic that Hemichordates share with Chordates is
1. Option A: Pharynx without gill slits
2. Option B: Absence of notochord
3. Option C: Ventral tubular nerve cord
4. Option D: Pharynx with gill slits
The answer and explanation for this question are in NEET MIND Premium.
Question 39 (NEET 2017, Q39)
Sexual Reproduction in Flowering PlantsBotanyEasy
Double fertilization is exhibited by
1. Option A: Angiosperms
2. Option B: Gymnosperms
3. Option C: Algae
4. Option D: Fungi
The answer and explanation for this question are in NEET MIND Premium.
Question 40 (NEET 2017, Q40)
Cell: The Unit of LifeBotanyEasy
Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?
1. Option A: Mitochondrion
2. Option B: Lysosome
3. Option C: Ribosome
4. Option D: Chloroplast
The answer and explanation for this question are in NEET MIND Premium.
Question 41 (NEET 2017, Q41)
Breathing and Exchange of GasesZoologyEasy
Lungs are made up of air-filled sacs the alveoli. They do not collapse even after forceful expiration, because of:
1. Option A: Expiratory Reserve Volume
2. Option B: Residual Volume
3. Option C: Inspiratory Reserve Volume
4. Option D: Tidal Volume
Show answer & explanationHide answer & explanation
Correct answer: (B) Residual Volume
Explanation
Residual volume is the amount of air remaining in the lungs even after forceful expiration. This prevents collapse of alveoli.
Question 42 (NEET 2017, Q42)
BiomoleculesZoologyEasy
Which of the following are not polymeric?
1. Option A: Lipids
2. Option B: Nucleic acids
3. Option C: Proteins
4. Option D: Polysaccharides
The answer and explanation for this question are in NEET MIND Premium.
Question 43 (NEET 2017, Q43)
Sexual Reproduction in Flowering PlantsBotanyMedium
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by
1. Option A: Bat
2. Option B: Water
3. Option C: Bee
4. Option D: Wind
The answer and explanation for this question are in NEET MIND Premium.
Question 44 (NEET 2017, Q44)
Photosynthesis in Higher PlantsBotanyMedium
Life cycle of Ectocarpus and Fucus respectively are
1. Option A: Haplodiplontic, Haplontic
2. Option B: Haplontic, Diplontic
3. Option C: Diplontic, Haplodiplontic
4. Option D: Haplodiplontic, Diplontic
The answer and explanation for this question are in NEET MIND Premium.
Question 45 (NEET 2017, Q45)
EcosystemBotanyMedium
Presence of plants arranged into well defined vertical layers depending on their height can be seen best in
1. Option A: Temperate Forest
2. Option B: Tropical Savannah
3. Option C: Tropical Rain Forest
4. Option D: Grassland
The answer and explanation for this question are in NEET MIND Premium.
Question 46 (NEET 2017, Q46)
Photosynthesis in Higher PlantsBotanyMedium
Phosphoenol pyruvate (PEP) is the primary CO $_2$ acceptor in:
1. Option A: C $_3$ and C $_4$ plants
2. Option B: C $_3$ plants
3. Option C: C $_4$ plants
4. Option D: C $_2$ plants
The answer and explanation for this question are in NEET MIND Premium.
Question 47 (NEET 2017, Q47)
Chemical Coordination and IntegrationZoologyHard
Good vision depends on adequate intake of carotene rich food. Select the best option from the following statements: (a) Vitamin A derivatives are formed from carotene (b) The photopigments are embedded in the membrane discs of the inner segment (c) Retinal is a derivative of vitamin A (d) Retinal is a light absorbing part of all the visual photopigments
1. Option A: (b), (c) & (d)
2. Option B: (a) & (b)
3. Option C: (a), (c) & (d)
4. Option D: (a) & (c)
The answer and explanation for this question are in NEET MIND Premium.
Question 48 (NEET 2017, Q48)
Principles of Inheritance and VariationBotanyEasy
Which one from those given below is the period for Mendel's hybridization experiments?
1. Option A: 1870 - 1877
2. Option B: 1856 - 1863
3. Option C: 1840 - 1850
4. Option D: 1857 - 1869
The answer and explanation for this question are in NEET MIND Premium.
Question 49 (NEET 2017, Q49)
Microbes in Human WelfareBotanyMedium
Select the mismatch:
1. Option A: Rhizobium – Alfalfa
2. Option B: Frankia – Alnus
3. Option C: Rhodospirillum – Mycorrhiza
4. Option D: Anabaena – Nitrogen fixer
The answer and explanation for this question are in NEET MIND Premium.
Question 50 (NEET 2017, Q50)
Sexual Reproduction in Flowering PlantsBotanyEasy
Attractants and rewards are required for
1. Option A: Cleistogamy
2. Option B: Anemophily
3. Option C: Entomophily
4. Option D: Hydrophily
The answer and explanation for this question are in NEET MIND Premium.
Question 51 (NEET 2017, Q51)
Reproductive HealthZoologyMedium
In case of a couple where the male is having a very low sperm count, which technique will be suitable for fertilisation?
1. Option A: Intracytoplasmic sperm injection
2. Option B: Intrauterine transfer
3. Option C: Gamete intracytoplasmic fallopian transfer
4. Option D: Artificial insemination
The answer and explanation for this question are in NEET MIND Premium.
Question 52 (NEET 2017, Q52)
The Living WorldBotanyEasy
Which among these is the correct combination of aquatic mammals?
1. Option A: Trygon, Whales, Seals
2. Option B: Seals, Dolphins, Sharks
3. Option C: Dolphins, Seals, Trygon
4. Option D: Whales, Dolphins, Seals
The answer and explanation for this question are in NEET MIND Premium.
Question 53 (NEET 2017, Q53)
Sexual Reproduction in Flowering PlantsBotanyMedium
Functional megaspore in an angiosperm develops into
1. Option A: Embryo
2. Option B: Ovule
3. Option C: Endosperm
4. Option D: Embryo sac
The answer and explanation for this question are in NEET MIND Premium.
Question 54 (NEET 2017, Q54)
Structural Organisation in AnimalsZoologyEasy
Root hairs develop from the region of
1. Option A: Meristematic activity
2. Option B: Maturation
3. Option C: Elongation
4. Option D: Root cap
The answer and explanation for this question are in NEET MIND Premium.
Question 55 (NEET 2017, Q55)
Sexual Reproduction in Flowering PlantsBotanyMedium
A dioecious flowering plant prevents both:
1. Option A: Cleistogamy and xenogamy
2. Option B: Autogamy and xenogamy
3. Option C: Autogamy and geitonogamy
4. Option D: Geitonogamy and xenogamy
The answer and explanation for this question are in NEET MIND Premium.
Question 56 (NEET 2017, Q56)
Body Fluids and CirculationZoologyEasy
The hepatic portal vein drains blood to liver from
1. Option A: Intestine
2. Option B: Heart
3. Option C: Stomach
4. Option D: Kidneys
The answer and explanation for this question are in NEET MIND Premium.
Question 57 (NEET 2017, Q57)
Molecular Basis of InheritanceBotanyMedium
What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis?
1. Option A: Negatively charged fragments do not move
2. Option B: The larger the fragment size, the farther it moves
3. Option C: The smaller the fragment size, the farther it moves
4. Option D: Positively charged fragments move to farther end
The answer and explanation for this question are in NEET MIND Premium.
Question 58 (NEET 2017, Q58)
The Living WorldBotanyMedium
Which of the following represents order of 'Horse'?
1. Option A: Ferus
2. Option B: Equidae
3. Option C: Perissodactyla
4. Option D: Caballus
The answer and explanation for this question are in NEET MIND Premium.
Question 59 (NEET 2017, Q59)
Respiration in PlantsBotanyHard
Which statement is wrong for Kreb's cycle?
1. Option A: The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid
2. Option B: There are three points in the cycle where NAD $^+$ is reduced to NADH + H $^+$
3. Option C: There is one point in the cycle where FAD $^+$ is reduced to FADH $_2$
4. Option D: During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesised
Show answer & explanationHide answer & explanation
Correct answer: (A) The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid
Explanation
Krebs cycle begins with condensation of acetyl CoA with oxaloacetic acid to form citric acid. Pyruvic acid does not directly participate in this condensation reaction.
Question 60 (NEET 2017, Q60)
Principles of Inheritance and VariationBotanyMedium
Artificial selection to obtain cows yielding higher milk output represents
1. Option A: Stabilizing followed by disruptive as it stabilizes the population to produce higher yielding cows
2. Option B: Stabilizing selection as it stabilizes this character in the population
3. Option C: Directional as it pushes the mean of the character in one direction
4. Option D: Disruptive as it splits the population into two one yielding higher output and the other lower output
The answer and explanation for this question are in NEET MIND Premium.
Question 61 (NEET 2017, Q61)
Biodiversity and ConservationBotanyEasy
The region of Biosphere Reserve which is legally protected and where no human activity is allowed is known as
1. Option A: Restoration zone
2. Option B: Core zone
3. Option C: Buffer zone
4. Option D: Transition zone
The answer and explanation for this question are in NEET MIND Premium.
Question 62 (NEET 2017, Q62)
Neural Control and CoordinationZoologyEasy
Receptor sites for neurotransmitters are present on
1. Option A: Post-synaptic membrane
2. Option B: Membranes of synaptic vesicles
3. Option C: Pre-synaptic membrane
4. Option D: Tips of axons
Show answer & explanationHide answer & explanation
Correct answer: (A) Post-synaptic membrane
Explanation
Neurotransmitter receptor sites are present on the post-synaptic membrane where chemical signals are received.
Question 63 (NEET 2017, Q63)
Structural Organisation in AnimalsZoologyMedium
The vascular cambium normally gives rise to
1. Option A: Periderm
2. Option B: Phelloderm
3. Option C: Primary phloem
4. Option D: Secondary xylem
The answer and explanation for this question are in NEET MIND Premium.
Question 64 (NEET 2017, Q64)
Body Fluids and CirculationZoologyEasy
A baby boy aged two years is admitted to play school and passed through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?
1. Option A: Molars
2. Option B: Incisors
3. Option C: Canines
4. Option D: Pre-molars
The answer and explanation for this question are in NEET MIND Premium.
Question 65 (NEET 2017, Q65)
Photosynthesis in Higher PlantsBotanyEasy
The water potential of pure water is
1. Option A: More than one
2. Option B: Zero
3. Option C: Less than zero
4. Option D: More than zero but less than one
The answer and explanation for this question are in NEET MIND Premium.
Question 66 (NEET 2017, Q66)
Biotechnology: Principles and ProcessesZoologyEasy
DNA fragments are
1. Option A: Either positively or negatively charged depending on their size
2. Option B: Positively charged
3. Option C: Negatively charged
4. Option D: Neutral
The answer and explanation for this question are in NEET MIND Premium.
Question 67 (NEET 2017, Q67)
Human ReproductionZoologyMedium
Capacitation occurs in
1. Option A: Female reproductive tract
2. Option B: Rete testis
3. Option C: Epididymis
4. Option D: Vas deferens
The answer and explanation for this question are in NEET MIND Premium.
Question 68 (NEET 2017, Q68)
Reproductive HealthZoologyEasy
The function of copper ions in copper releasing IUD's is
1. Option A: They inhibit ovulation
2. Option B: They suppress sperm motility and fertilising capacity of sperms
3. Option C: They inhibit gametogenesis
4. Option D: They make uterus unsuitable for implantation
The answer and explanation for this question are in NEET MIND Premium.
Question 69 (NEET 2017, Q69)
Biotechnology: Principles and ProcessesZoologyMedium
A gene whose expresson helps to identify transformed cell is known as
1. Option A: Structural gene
2. Option B: Selectable marker
3. Option C: Vector
4. Option D: Plasmid
The answer and explanation for this question are in NEET MIND Premium.
Question 70 (NEET 2017, Q70)
EcosystemBotanyMedium
Which one of the following statements is not valid for aerosols?
1. Option A: They have negative impact on agricultural land
2. Option B: They are harmful to human health
3. Option C: They alter rainfall and monsoon patterns
4. Option D: They cause increased agricultural productivity
The answer and explanation for this question are in NEET MIND Premium.
Question 71 (NEET 2017, Q71)
Excretory Products and Their EliminationZoologyMedium
Which of the following statements is correct?
1. Option A: The descending limb of loop of Henle is permeable to electrolytes
2. Option B: The ascending limb of loop of Henle is impermeable to water
3. Option C: The descending limb of loop of Henle is impermeable to water
4. Option D: The ascending limb of loop of Henle is permeable to water
The answer and explanation for this question are in NEET MIND Premium.
Question 72 (NEET 2017, Q72)
Microbes in Human WelfareBotanyEasy
Which of the following in sewage treatment removes suspended solids?
1. Option A: Sludge treatment
2. Option B: Tertiary treatment
3. Option C: Secondary treatment
4. Option D: Primary treatment
The answer and explanation for this question are in NEET MIND Premium.
Question 73 (NEET 2017, Q73)
Chemical Coordination and IntegrationZoologyMedium
GnRH, a hypothalamic hormone, needed in reproduction, acts on
1. Option A: Posterior pituitary gland and stimulates secretion of LH and relaxin
2. Option B: Anterior pituitary gland and stimulates secretion of LH and oxytocin
3. Option C: Anterior pituitary gland and stimulates secretion of LH and FSH
4. Option D: Posterior pituitary gland and stimulates secretion of oxytocin and FSH
The answer and explanation for this question are in NEET MIND Premium.
Question 74 (NEET 2017, Q74)
Photosynthesis in Higher PlantsBotanyHard
Which of the following facilitates opening of stomatal aperture?
1. Option A: Longitudinal orientation of cellulose microfibrils in the cell wall of guard cells
2. Option B: Contraction of outer wall of guard cells
3. Option C: Decrease in turgidity of guard cells
4. Option D: Radial orientation of cellulose microfibrils in the cell wall of guard cells
The answer and explanation for this question are in NEET MIND Premium.
Question 75 (NEET 2017, Q75)
Principles of Inheritance and VariationBotanyHard
The genotypes of a Husband and Wife are $I^A I^B$ and $I^A i$ . Among the blood types of their children, how many different genotypes and phenotypes are possible?
1. Option A: 4 genotypes ; 4 phenotypes
2. Option B: 3 genotypes ; 3 phenotypes
3. Option C: 3 genotypes ; 4 phenotypes
4. Option D: 4 genotypes ; 3 phenotypes
The answer and explanation for this question are in NEET MIND Premium.
Question 76 (NEET 2017, Q76)
EcosystemBotanyMedium
Plants which produce characteristic pneumatophores and show vivipary belong to
1. Option A: Hydrophytes
2. Option B: Mesophytes
3. Option C: Halophytes
4. Option D: Psammophytes
The answer and explanation for this question are in NEET MIND Premium.
Question 77 (NEET 2017, Q77)
EcosystemBotanyMedium
Alexander Von Humboldt described for the first time
1. Option A: Population Growth equation
2. Option B: Ecological Biodiversity
3. Option C: Laws of limiting factor
4. Option D: Species area relationships
The answer and explanation for this question are in NEET MIND Premium.
Question 78 (NEET 2017, Q78)
Cell Cycle and Cell DivisionBotanyEasy
DNA replication in bacteria occurs
1. Option A: Just before transcription
2. Option B: During S-phase
3. Option C: Within nucleolus
4. Option D: Prior to fission
The answer and explanation for this question are in NEET MIND Premium.
Question 79 (NEET 2017, Q79)
Human Health and DiseaseZoologyEasy
MALT constitutes about ________ percent of the lymphoid tissue in human body
1. Option A: 10%
2. Option B: 50%
3. Option C: 20%
4. Option D: 70%
The answer and explanation for this question are in NEET MIND Premium.
Question 80 (NEET 2017, Q80)
Structural Organisation in AnimalsZoologyMedium
In Bougainvillea thorns are the modifications of
1. Option A: Leaf
2. Option B: Stipules
3. Option C: Adventitious root
4. Option D: Stem
The answer and explanation for this question are in NEET MIND Premium.
Question 81 (NEET 2017, Q81)
Plant Growth and DevelopmentBotanyMedium
Fruit and leaf drop at early stages can be prevented by the application of
1. Option A: Gibberellic acid
2. Option B: Cytokinins
3. Option C: Ethylene
4. Option D: Auxins
The answer and explanation for this question are in NEET MIND Premium.
Question 82 (NEET 2017, Q82)
The Living WorldBotanyEasy
Which of the following are found in extreme saline conditions?
1. Option A: Mycobacteria
2. Option B: Archaebacteria
3. Option C: Eubacteria
4. Option D: Cyanobacteria
The answer and explanation for this question are in NEET MIND Premium.
Question 83 (NEET 2017, Q83)
Structural Organisation in AnimalsZoologyEasy
Coconut fruit is a
1. Option A: Capsule
2. Option B: Drupe
3. Option C: Berry
4. Option D: Nut
The answer and explanation for this question are in NEET MIND Premium.
Question 84 (NEET 2017, Q84)
Biotechnology: Principles and ProcessesZoologyEasy
The DNA fragments separated on an agarose gel can be visualised after staining with
1. Option A: Ethidium bromide
2. Option B: Bromophenol blue
3. Option C: Acetocarmine
4. Option D: Aniline blue
The answer and explanation for this question are in NEET MIND Premium.
Question 85 (NEET 2017, Q85)
Structural Organisation in AnimalsZoologyMedium
Out of $X$ pairs of ribs in humans only $Y$ pairs are true ribs. Select the option that correctly represents values of $X$ and $Y$ and provides their explanation:
1. Option A: $X = 24,\ Y = 12$ : True ribs are dorsally attached to vertebral column but are free on ventral side
2. Option B: $X = 12,\ Y = 7$ : True ribs are attached dorsally to vertebral column and ventrally to the sternum
3. Option C: $X = 12,\ Y = 5$ : True ribs are attached dorsally to vertebral column and sternum on the two ends
4. Option D: $X = 24,\ Y = 7$ : True ribs are attached dorsally to vertebral column but are free on ventral side
The answer and explanation for this question are in NEET MIND Premium.
Question 86 (NEET 2017, Q86)
Neural Control and CoordinationZoologyMedium
Myelin sheath is produced by
1. Option A: Osteoclasts and Astrocytes
2. Option B: Schwann Cells and Oligodendrocytes
3. Option C: Astrocytes and Schwann Cells
4. Option D: Oligodendrocytes and Osteoclasts
Show answer & explanationHide answer & explanation
Correct answer: (B) Schwann Cells and Oligodendrocytes
Explanation
Oligodendrocytes form myelin sheath in the central nervous system, whereas Schwann cells produce myelin sheath in the peripheral nervous system.
Question 87 (NEET 2017, Q87)
Cell Cycle and Cell DivisionBotanyHard
Which of the following options gives the correct sequence of events during mitosis?
1. Option A: Condensation $\rightarrow$ arrangement at equator $\rightarrow$ centromere division $\rightarrow$ segregation $\rightarrow$ telophase
2. Option B: Condensation $\rightarrow$ nuclear membrane disassembly $\rightarrow$ crossing over $\rightarrow$ segregation $\rightarrow$ telophase
3. Option C: Condensation $\rightarrow$ nuclear membrane disassembly $\rightarrow$ arrangement at equator $\rightarrow$ centromere division $\rightarrow$ segregation $\rightarrow$ telophase
4. Option D: Condensation $\rightarrow$ crossing over $\rightarrow$ nuclear membrane disassembly $\rightarrow$ segregation $\rightarrow$ telophase
The answer and explanation for this question are in NEET MIND Premium.
Question 88 (NEET 2017, Q88)
Principles of Inheritance and VariationBotanyMedium
A disease caused by an autosomal primary non-disjunction is
1. Option A: Sickle cell anemia
2. Option B: Down's syndrome
3. Option C: Klinefelter's syndrome
4. Option D: Turner's syndrome
The answer and explanation for this question are in NEET MIND Premium.
Question 89 (NEET 2017, Q89)
Body Fluids and CirculationZoologyMedium
Which cells of 'Crypts of Lieberkuhn' secrete antibacterial lysozyme?
1. Option A: Kupffer cells
2. Option B: Argentaffin cells
3. Option C: Paneth cells
4. Option D: Zymogen cells
The answer and explanation for this question are in NEET MIND Premium.
Question 90 (NEET 2017, Q90)
Biodiversity and ConservationBotanyEasy
Which one of the following is related to $Ex\text{-}situ$ conservation of threatened animals and plants?
1. Option A: Himalayan region
2. Option B: Wildlife Safari parks
3. Option C: Biodiversity hot spots
4. Option D: Amazon rainforest
The answer and explanation for this question are in NEET MIND Premium.
Question 91 (NEET 2017, Q160)
BiomoleculesZoologyEasy
Which of the following statements is not correct?
1. Option A: Denaturation makes the proteins more active
2. Option B: Insulin maintains sugar level in the blood of a human body
3. Option C: Ovalbumin is a simple food reserve in egg-white
4. Option D: Blood proteins thrombin and fibrinogen are involved in blood clotting
The answer and explanation for this question are in NEET MIND Premium.

Practise NEET 2017 Biology with your progress saved

A free account gives you 15 PYQs in every chapter with explanations, and keeps every mistake for revision.

Start practising free

NEET 2017 Biology Questions with Solutions

Chapter-wise: NEET 2017 Biology

All 91 NEET 2017 Biology questions

NEET Biology questions in other years

Practise NEET 2017 Biology with your progress saved