AIPMT 2012 · Biology

AIPMT 2012 Biology Questions with Solutions

The AIPMT 2012 paper had 60 Biology questions from 28 chapters. By section: 37 Botany and 23 Zoology.

Molecular Basis of Inheritance and Structural Organisation in Animals had the most questions (4 each), followed by Biomolecules, Biotechnology: Principles and Processes and 4 other chapters with 3 each.

8 questions below have the answer and explanation free; the other 52 are in Premium.

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Biology questions
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Chapter-wise: AIPMT 2012 Biology

How many questions each chapter had in AIPMT 2012. Open a chapter for its questions from every year.

  1. Molecular Basis of Inheritance· Botany4 Qs
  2. Structural Organisation in Animals· Zoology4 Qs
  3. Biomolecules· Zoology3 Qs
  4. Biotechnology: Principles and Processes· Zoology3 Qs
  5. Human Health and Disease· Zoology3 Qs
  6. Microbes in Human Welfare· Botany3 Qs
  7. Plant Growth and Development· Botany3 Qs
  8. Sexual Reproduction in Flowering Plants· Botany3 Qs
  9. Animal Kingdom· Zoology2 Qs
  10. Biodiversity and Conservation· Botany2 Qs
  11. Biological Classification· Botany2 Qs
  12. Biotechnology and Its Applications· Zoology2 Qs
  13. Cell: The Unit of Life· Botany2 Qs
  14. Ecosystem· Botany2 Qs
  15. Excretory Products and Their Elimination· Zoology2 Qs
  16. Human Reproduction· Zoology2 Qs
  17. Morphology of Flowering Plants· Botany2 Qs
  18. Organisms and Populations· Botany2 Qs
  19. Plant Kingdom· Botany2 Qs
  20. Principles of Inheritance and Variation· Botany2 Qs
  21. Strategies For Enhancement In Food Production· Botany2 Qs
  22. The Living World· Botany2 Qs
  23. Anatomy of Flowering Plants· Botany1 Q
  24. Body Fluids and Circulation· Zoology1 Q
  25. Cell Cycle and Cell Division· Botany1 Q
  26. Evolution· Zoology1 Q
  27. Photosynthesis in Higher Plants· Botany1 Q
  28. Respiration in Plants· Botany1 Q

All 60 AIPMT 2012 Biology questions

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

  1. Question 1 (AIPMT 2012, Q31)

    Molecular Basis of InheritanceBotanyMedium
    Read the following four statements (A–D): (A) In transcription adenosine pairs with uracil (B) Regulation of lac operon by repressor is referred to as positive regulation (C) The human genome has approximately 50,000 genes (D) Haemophilia is a sex-linked recessive disease. How many of the above statements are right?
    1. Option A: Three
    2. Option B: Four
    3. Option C: One
    4. Option D: Two

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  2. Question 2 (AIPMT 2012, Q32)

    Biological ClassificationBotanyMedium
    How many organisms in the list given below are autotrophs? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Saccharomyces, Trypanosoma, Porphyra, Wolffia
    1. Option A: Five
    2. Option B: Six
    3. Option C: Three
    4. Option D: Four

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  3. Question 3 (AIPMT 2012, Q33)

    Morphology of Flowering PlantsBotanyHard
    How many plants in the list given below have marginal placentation? Mustard, Gram, Tulip, Asparagus, Arhar, Sunhemp, Chilli, Colchicine, Onion, Moong, Pea, Tobacco
    1. Option A: Five
    2. Option B: Six
    3. Option C: Three
    4. Option D: Four

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  4. Question 4 (AIPMT 2012, Q34)

    Anatomy of Flowering PlantsBotanyEasy
    As compared to a dicot root, a monocot root has:
    1. Option A: Many xylem bundles
    2. Option B: Inconspicuous annual rings
    3. Option C: Relatively thicker periderm
    4. Option D: More abundant secondary xylem
    Show answer & explanation

    Correct answer: (A) Many xylem bundles

    Explanation

    Monocot roots are polyarch, meaning they possess many xylem bundles. Secondary growth is generally absent in monocot roots. Hence option (A) is correct.

  5. Question 5 (AIPMT 2012, Q35)

    Principles of Inheritance and VariationBotanyEasy
    A test cross is carried out to:
    1. Option A: Predict whether two traits are linked
    2. Option B: Assess the number of alleles of a gene
    3. Option C: Determine whether two species or varieties will breed successfully
    4. Option D: Determine the genotype of a plant at F₂

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  6. Question 6 (AIPMT 2012, Q36)

    Animal KingdomZoologyMedium
    Which one of the following categories of animals is correctly described with no single exception in it?
    1. Option A: All bony fishes have four pairs of gills and an operculum on each side
    2. Option B: All sponges are marine and have collared cells
    3. Option C: All mammals are viviparous and possess diaphragm for breathing
    4. Option D: All reptiles possess scales, have a three chambered heart and are cold blooded (poikilothermal)
    Show answer & explanation

    Correct answer: (A) All bony fishes have four pairs of gills and an operculum on each side

    Explanation

    Statement (A) is correct for bony fishes. (B) is incorrect because some sponges are freshwater. (C) is incorrect because monotremes are oviparous. (D) is incorrect because crocodiles have a four-chambered heart. Hence option (A) is correct.

  7. Question 7 (AIPMT 2012, Q37)

    EcosystemBotanyEasy
    The rate of formation of new organic matter by rabbit in a grassland is called:
    1. Option A: Secondary productivity
    2. Option B: Net primary productivity
    3. Option C: Gross primary productivity
    4. Option D: Net productivity

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  8. Question 8 (AIPMT 2012, Q38)

    Biotechnology: Principles and ProcessesZoologyEasy
    In genetic engineering, the antibiotics are used:
    1. Option A: To select healthy vectors
    2. Option B: As sequences from where replication starts
    3. Option C: To keep the cultures free of infection
    4. Option D: As selectable markers

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  9. Question 9 (AIPMT 2012, Q39)

    Human ReproductionZoologyEasy
    The secretory phase in the human menstrual cycle is also called:
    1. Option A: Follicular phase lasting for about 6 days
    2. Option B: Luteal phase and lasts for about 13 days
    3. Option C: Follicular phase and lasts for about 13 days
    4. Option D: Luteal phase and lasts for about 6 days

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  10. Question 10 (AIPMT 2012, Q40)

    Microbes in Human WelfareBotanyEasy
    In gobar gas, the maximum amount is that of:
    1. Option A: Methane
    2. Option B: Propane
    3. Option C: Carbon dioxide
    4. Option D: Butane

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  11. Question 11 (AIPMT 2012, Q41)

    Plant Growth and DevelopmentBotanyMedium
    Through their effect on plant growth regulators, what do the temperature and light control in plants?
    1. Option A: Flowering
    2. Option B: Closure of stomata
    3. Option C: Fruit elongation
    4. Option D: Apical dominance

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  12. Question 12 (AIPMT 2012, Q42)

    Body Fluids and CirculationZoologyEasy
    Which one of the following human organs is often called the “Graveyard” of RBC’s?
    1. Option A: Kidney
    2. Option B: Spleen
    3. Option C: Liver
    4. Option D: Gall bladder

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  13. Question 13 (AIPMT 2012, Q43)

    Animal KingdomZoologyMedium
    Which one of the following pairs of animals are similar to each other pertaining to the feature stated against them?
    1. Option A: Garden lizard and crocodile – Three chambered heart
    2. Option B: Ascaris and Ancylostoma – Metameric segmentation
    3. Option C: Sea horse and flying fish – Cold blooded (poikilothermal)
    4. Option D: Pteropus and ornithorhynchus – Viviparity
    Show answer & explanation

    Correct answer: (C) Sea horse and flying fish – Cold blooded (poikilothermal)

    Explanation

    Sea horse and flying fish are fishes and hence are cold blooded (poikilothermal). Option (A) is incorrect because crocodile has a four-chambered heart. Option (B) is incorrect because nematodes do not show metameric segmentation. Option (D) is incorrect because ornithorhynchus (platypus) is oviparous. Therefore, option (C) is correct.

  14. Question 14 (AIPMT 2012, Q44)

    EvolutionZoologyEasy
    The idea of mutations was brought forth by:
    1. Option A: Gregor Mendel, who worked on Pisum sativum
    2. Option B: Hardy Weinberg, who worked on allele frequencies in a population
    3. Option C: Charles Darwin, who observed a wide variety of organisms during sea voyage
    4. Option D: Hugo de Vries, who worked on evening primrose

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  15. Question 15 (AIPMT 2012, Q45)

    Biodiversity and ConservationBotanyMedium
    Select the correct statements about biodiversity:
    1. Option A: Large scale planting of Bt cotton has no adverse effect on biodiversity
    2. Option B: Western Ghats have a very high degree of species richness and endemism
    3. Option C: Conservation of biodiversity is just a fad pursued by the developed countries
    4. Option D: The desert areas of Rajasthan and Gujarat have a very high level of desert animal species as well as numerous rare animals

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  16. Question 16 (AIPMT 2012, Q46)

    Sexual Reproduction in Flowering PlantsBotanyMedium
    Plants with ovaries having only one or a few ovules, are generally pollinated by:
    1. Option A: Butterflies
    2. Option B: Birds
    3. Option C: Wind
    4. Option D: Bees

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  17. Question 17 (AIPMT 2012, Q47)

    Strategies For Enhancement In Food ProductionBotanyHard
    Consider the following four statements (a-d) and select the option which includes all the correct ones only: (a) Single cell protein can produce large quantities of food rich in protein, minerals, vitamins etc. (b) Body weight-wise the microorganism Methylophilus methylotrophus may be able to produce several times more proteins than the cows per day (c) Common button mushrooms are very rich source of vitamin C (d) A rice variety has been developed which is very rich in calcium
    1. Option A: Statements (a), (c) and (d)
    2. Option B: Statements (b), (c) and (d)
    3. Option C: Statements (a), (b)
    4. Option D: Statements (c), (d)
    Show answer & explanation

    Correct answer: (C) Statements (a), (b)

    Explanation

    Statements (a) and (b) are correct. Statement (c) is incorrect because mushrooms are not especially rich in vitamin C. Statement (d) is incorrect because the famous biofortified rice variety is rich in vitamin A (Golden Rice), not calcium. Therefore, option (C) is correct.

  18. Question 18 (AIPMT 2012, Q48)

    BiomoleculesZoologyMedium
    Which one of the following biomolecules is correctly characterised?
    1. Option A: Palmitic acid – An unsaturated fatty acid with 18 carbon atoms
    2. Option B: Adenylic acid – Adenosine with a glucose phosphate molecule
    3. Option C: Alanine amino acid – Contains amino group and an acidic group anywhere in the molecule
    4. Option D: Lecithin – A phosphorylated glyceride found in cell membrane

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  19. Question 19 (AIPMT 2012, Q49)

    Photosynthesis in Higher PlantsBotanyEasy
    For its action, nitrogenase requires:
    1. Option A: Light
    2. Option B: Mn²⁺
    3. Option C: Super oxygen radicals
    4. Option D: High input of energy

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  20. Question 20 (AIPMT 2012, Q50)

    Biotechnology and Its ApplicationsZoologyMedium
    Tobacco plants resistance to a nematode have been developed by the introduction of DNA that produced (in the host cells):
    1. Option A: A particular hormone
    2. Option B: An antifeedant
    3. Option C: A toxic protein
    4. Option D: Both sense and anti-sense RNA

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  21. Question 21 (AIPMT 2012, Q51)

    Human Health and DiseaseZoologyMedium
    Where do certain symbiotic microorganisms normally occur in human body?
    1. Option A: Oral lining and tongue surface
    2. Option B: Vermiform appendix and rectum
    3. Option C: Duodenum
    4. Option D: Caecum

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  22. Question 22 (AIPMT 2012, Q52)

    Cell Cycle and Cell DivisionBotanyEasy
    Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres:
    1. Option A: Metaphase II
    2. Option B: Anaphase I
    3. Option C: Anaphase II
    4. Option D: Metaphase I

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  23. Question 23 (AIPMT 2012, Q53)

    Cell: The Unit of LifeBotanyMedium
    Which one of the following cellular parts is correctly described?
    1. Option A: Centrioles – sites for active RNA synthesis
    2. Option B: Ribosomes – those on chloroplasts are larger (80s) while those in the cytoplasm are smaller (70s)
    3. Option C: Lysosomes – optimally active at a pH of about 8.5
    4. Option D: Thylakoids – flattened membranous sacs forming the grana of chloroplasts

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  24. Question 24 (AIPMT 2012, Q54)

    Organisms and PopulationsBotanyEasy
    Cuscuta is an example of:
    1. Option A: Brood parasitism
    2. Option B: Predation
    3. Option C: Endoparasitism
    4. Option D: Ectoparasitism

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  25. Question 25 (AIPMT 2012, Q55)

    Structural Organisation in AnimalsZoologyEasy
    The supportive skeletal structures in the human external ears and in the nose tip are examples of:
    1. Option A: Areolar tissue
    2. Option B: Bone
    3. Option C: Cartilage
    4. Option D: Ligament

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  26. Question 26 (AIPMT 2012, Q56)

    Plant KingdomBotanyHard
    Read the following five statements (A-B) and answer as asked next to them: (a) In Equisetum the female gametophyte is retained on the parent sporophyte (b) In Ginkgo male gametophyte is not independent (c) The sporophyte in Riccia is more developed than that in Polytrichum (d) Sexual reproduction in Volvox is oogamous (e) The spores of slime molds lack cell walls How many of the above statements are correct?
    1. Option A: Three
    2. Option B: Four
    3. Option C: One
    4. Option D: Two
    Show answer & explanation

    Correct answer: (C) One

    Explanation

    Evaluation of statements: (a) Incorrect – Equisetum is homosporous and gametophytes are free living. (b) Correct – In Ginkgo, male gametophyte is dependent on sporophyte. (c) Incorrect – Polytrichum has a more developed sporophyte than Riccia. (d) Correct – Sexual reproduction in Volvox is oogamous. (e) Correct – Slime mold spores lack true cell walls. Thus, three statements are correct. Therefore, option (A) is correct.

  27. Question 27 (AIPMT 2012, Q57)

    Human Health and DiseaseZoologyHard
    Identify the molecules (A) and (B) shown below and select the right option giving their source and use:
    1. Option A: Option (1)
    2. Option B: Option (2)
    3. Option C: Option (3)
    4. Option D: Option (4)

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  28. Question 28 (AIPMT 2012, Q58)

    Biotechnology: Principles and ProcessesZoologyHard
    The figure below shows three steps (A, B, C) of polymerase chain reaction (PCR). Select the option giving correct identification together with what it represents?
    1. Option A: A – Denaturation at a temperature of about 50°C
    2. Option B: C – Extension in the presence of heat stable DNA polymerase
    3. Option C: A – Annealing with two sets of primers
    4. Option D: B – Denaturation at a temperature of about 98°C separating the two DNA strands

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  29. Question 29 (AIPMT 2012, Q59)

    Organisms and PopulationsBotanyHard
    Identify the likely organisms (a), (b), (c) and (d) in the food web shown below:
    1. Option A: Option (1)
    2. Option B: Option (2)
    3. Option C: Option (3)
    4. Option D: Option (4)

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  30. Question 30 (AIPMT 2012, Q60)

    BiomoleculesZoologyMedium
    Which one of the following pairs of chemical substances is correctly categorised?
    1. Option A: Pepsin and prolactin – Two digestive enzymes secreted in stomach
    2. Option B: Troponin and myosin – Complex proteins in striated muscles
    3. Option C: Secretin and rhodopsin – Polypeptide hormones
    4. Option D: Calcitonin and thymosin – Thyroid hormones

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  31. Question 31 (AIPMT 2012, Q61)

    Plant Growth and DevelopmentBotanyEasy
    Vernalisation stimulates flowering in:
    1. Option A: Turmeric
    2. Option B: Carrot
    3. Option C: Ginger
    4. Option D: Zaminkand

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  32. Question 32 (AIPMT 2012, Q62)

    Strategies For Enhancement In Food ProductionBotanyEasy
    Green revolution in India occurred during:
    1. Option A: 1970’s
    2. Option B: 1980’s
    3. Option C: 1950’s
    4. Option D: 1960’s
    Show answer & explanation

    Correct answer: (D) 1960’s

    Explanation

    The Green Revolution in India began during the 1960s with the introduction of high yielding varieties of wheat and rice. Therefore, option (D) is correct.

  33. Question 33 (AIPMT 2012, Q63)

    Excretory Products and Their EliminationZoologyMedium
    A fall in glomerular filtration rate (GFR) activates:
    1. Option A: Adrenal cortex to release aldosterone
    2. Option B: Adrenal medulla to release adrenaline
    3. Option C: Posterior pituitary to release vasopressin
    4. Option D: Juxta glomerular cells to release renin

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  34. Question 34 (AIPMT 2012, Q64)

    Sexual Reproduction in Flowering PlantsBotanyEasy
    What is the function of germ pore?
    1. Option A: Absorption of water for seed germination
    2. Option B: Initiation of pollen tube
    3. Option C: Release of male gametes
    4. Option D: Emergence of radical

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  35. Question 35 (AIPMT 2012, Q65)

    Excretory Products and Their EliminationZoologyHard
    Which one of the following options gives the correct categorisation of six animals according to the type of nitrogenous wastes (A, B, C), they give out?
    1. Option A: Option (1)
    2. Option B: Option (2)
    3. Option C: Option (3)
    4. Option D: Option (4)

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  36. Question 36 (AIPMT 2012, Q66)

    The Living WorldBotanyHard
    Which one of the following items in the options 1–4 are correctly categorized with one exception in it?
    1. Option A: Option (1)
    2. Option B: Option (2)
    3. Option C: Option (3)
    4. Option D: Option (4)

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  37. Question 37 (AIPMT 2012, Q67)

    Plant Growth and DevelopmentBotanyEasy
    Which one of the following generally acts as an antagonist to gibberellins?
    1. Option A: Ethylene
    2. Option B: ABA
    3. Option C: IAA
    4. Option D: Zeatin

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  38. Question 38 (AIPMT 2012, Q68)

    The Living WorldBotanyMedium
    Which one of the following organisms is scientifically correctly named, correctly printed according to the international Rules of Nomenclature and correctly described?
    1. Option A: Plasmodium falciparum – A protozoan pathogen causing the most serious type of malaria
    2. Option B: Felis tigris – The Indian tiger, well protected in gir forests
    3. Option C: E-coli – full name, Entamoeba coli, a commonly occurring bacterium in human intestine
    4. Option D: Musca domestic – The common house lizard a reptile

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  39. Question 39 (AIPMT 2012, Q69)

    Microbes in Human WelfareBotanyMedium
    Read the following four statements (A–D): (A) Colostrum is recommended for the new born because it is rich in antigens (B) Chikungunya is caused by a gram negative bacterium (C) Tissue culture has proved useful in obtaining virus-free plants (D) Beer is manufactured by distillation of fermented grape juice How many of the above statements are wrong?
    1. Option A: Three
    2. Option B: Four
    3. Option C: One
    4. Option D: Two

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  40. Question 40 (AIPMT 2012, Q70)

    Morphology of Flowering PlantsBotanyHard
    Which one of the following organisms is correctly matched with its three characteristics?
    1. Option A: Tomato : twisted aestivation, axile placentation, berry
    2. Option B: Onion : bulb, imbricate aestivation, axile placentation
    3. Option C: Maize : C₃ pathway, closed vascular bundles
    4. Option D: Pea : C₃ pathway, endospermic seed, vexillary aestivation

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  41. Question 41 (AIPMT 2012, Q71)

    EcosystemBotanyMedium
    The second stage of hydrosere is occupied by plants like:
    1. Option A: Typha
    2. Option B: Salix
    3. Option C: Vallisneria
    4. Option D: Azolla

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  42. Question 42 (AIPMT 2012, Q72)

    Human Health and DiseaseZoologyMedium
    Which one of the following statements is correct with respect to immunity?
    1. Option A: The antibodies against small pox pathogen are produced by T-lymphocytes
    2. Option B: Antibodies are protein molecules, each of which has four light chains
    3. Option C: Rejection of a kidney graft is the function of B-lymphocytes
    4. Option D: Preformed antibodies need to be injected to treat the bite by a viper snake

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  43. Question 43 (AIPMT 2012, Q73)

    Molecular Basis of InheritanceBotanyHard
    Which one of the following represents a palindromic sequence in DNA?
    1. Option A: 5′–CCAATG–3′ / 3′–GAATCC–5′
    2. Option B: 5′–CATTAG–3′ / 3′–GATAAC–5′
    3. Option C: 5′–GATACC–3′ / 3′–CCTAAG–5′
    4. Option D: 5′–GAATTC–3′ / 3′–CTTAAG–5′

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  44. Question 44 (AIPMT 2012, Q74)

    BiomoleculesZoologyEasy
    For its activity, Carboxypeptidase requires:
    1. Option A: Iron
    2. Option B: Niacin
    3. Option C: Copper
    4. Option D: Zinc

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  45. Question 45 (AIPMT 2012, Q75)

    Structural Organisation in AnimalsZoologyHard
    Given below is the diagrammatic sketch of certain type of connective tissue. Identify the parts labelled A, B, C and D, and select the right option about them.
    1. Option A: Option (1)
    2. Option B: Option (2)
    3. Option C: Option (3)
    4. Option D: Option (4)

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  46. Question 46 (AIPMT 2012, Q76)

    Biological ClassificationBotanyEasy
    In the five-kingdom classification, Chlamydomonas and Chlorella have been included in:
    1. Option A: Algae
    2. Option B: Plantae
    3. Option C: Monera
    4. Option D: Protista

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  47. Question 47 (AIPMT 2012, Q77)

    Respiration in PlantsBotanyHard
    Read the following four statements (A–D): (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane (B) In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth (C) Stamens in flowers of Gloriosa and Petunia are polyandrous (D) Symbiotic nitrogen-fixers occur in free-living state also in soil. How many of the above statements are right?
    1. Option A: Three
    2. Option B: Four
    3. Option C: One
    4. Option D: Two
    Show answer & explanation

    Correct answer: (D) Two

    Explanation

    Statement (A) is correct because proton transport occurs across membranes during ATP synthesis. Statement (B) is incorrect because interfascicular cambium arises from medullary rays, not pericycle. Statement (C) is incorrect because stamens in Gloriosa and Petunia are epiphyllous, not polyandrous. Statement (D) is correct because Rhizobium can exist freely in soil as well as symbiotically. Thus, two statements are correct. Therefore, option (D) is correct.

  48. Question 48 (AIPMT 2012, Q78)

    Microbes in Human WelfareBotanyMedium
    The domestic sewage in large cities:
    1. Option A: Is processed by aerobic and then anaerobic bacteria in the secondary treatment in sewage treatment plants (STPs)
    2. Option B: When treated in STPs does not really require the aeration step as the sewage contains adequate oxygen
    3. Option C: Has very high amounts of suspended solids and dissolved salts
    4. Option D: Has a high BOD as it contains both aerobic and anaerobic bacteria

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  49. Question 49 (AIPMT 2012, Q79)

    Plant KingdomBotanyMedium
    Which one of the following pairs is wrongly matched?
    1. Option A: Salvinia – Prothallus
    2. Option B: Viroids – RNA
    3. Option C: Mustard – Synergids
    4. Option D: Ginkgo – Archegonia
    Show answer & explanation

    Correct answer: (A) Salvinia – Prothallus

    Explanation

    Salvinia is a heterosporous pteridophyte and does not produce an independent prothallus like homosporous ferns. The other pairs are correctly matched. Therefore, option (A) is correct.

  50. Question 50 (AIPMT 2012, Q80)

    Molecular Basis of InheritanceBotanyEasy
    What is it that forms the basis of DNA fingerprinting?
    1. Option A: The relative difference in the DNA occurrence in blood, skin and saliva
    2. Option B: The relative amount of DNA in the ridges and grooves of the fingerprints
    3. Option C: Satellite DNA occurring as highly repeated short DNA segments
    4. Option D: The relative proportions of purines and pyrimidines in DNA

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  51. Question 51 (AIPMT 2012, Q81)

    Structural Organisation in AnimalsZoologyMedium
    Which one of the following characteristics is common both in humans and adult frogs?
    1. Option A: Internal fertilization
    2. Option B: Nucleated RBC’s
    3. Option C: Ureotelic mode of excretion
    4. Option D: Four-chambered heart

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  52. Question 52 (AIPMT 2012, Q82)

    Principles of Inheritance and VariationBotanyMedium
    Represented below is the inheritance pattern of certain type of traits in humans. Which one of the following conditions could be an example of this pattern?
    1. Option A: Sickle cell anaemia
    2. Option B: Haemophilia
    3. Option C: Thalassemia
    4. Option D: Phenylketonuria

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  53. Question 53 (AIPMT 2012, Q83)

    Structural Organisation in AnimalsZoologyHard
    The four sketches (A, B, C and D) given below, represent four different types of animal tissues. Which one of these is correctly identified in the options given along with its correct location and function?
    1. Option A: Option (1)
    2. Option B: Option (2)
    3. Option C: Option (3)
    4. Option D: Option (4)

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  54. Question 54 (AIPMT 2012, Q84)

    Cell: The Unit of LifeBotanyEasy
    Which one of the following structure is an organelle within an organelle?
    1. Option A: Peroxisome
    2. Option B: ER
    3. Option C: Mesosome
    4. Option D: Ribosome

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  55. Question 55 (AIPMT 2012, Q85)

    Biotechnology and Its ApplicationsZoologyEasy
    The first clinical gene therapy was given for treating:
    1. Option A: Chicken pox
    2. Option B: Rheumatoid arthritis
    3. Option C: Adenosine deaminase deficiency
    4. Option D: Diabetes mellitus

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  56. Question 56 (AIPMT 2012, Q86)

    Biodiversity and ConservationBotanyEasy
    Sacred groves are specially useful in:
    1. Option A: Preventing soil erosion
    2. Option B: Year-round flow of water in rivers
    3. Option C: Conserving rare and threatened species
    4. Option D: Generating environmental awareness

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  57. Question 57 (AIPMT 2012, Q87)

    Molecular Basis of InheritanceBotanyMedium
    Which one of the following is a wrong statement regarding mutations?
    1. Option A: Cancer cells commonly show chromosomal aberrations
    2. Option B: UV and Gamma rays are mutagens
    3. Option C: Change in a single base pair of DNA does not cause mutation
    4. Option D: Deletion and insertion of base pairs cause frame-shift mutations

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  58. Question 58 (AIPMT 2012, Q88)

    Biotechnology: Principles and ProcessesZoologyEasy
    Biolistics (gene-gun) is useful for:
    1. Option A: Transformation of plant cells
    2. Option B: Constructing recombinant DNA by joining with vectors
    3. Option C: DNA fingerprinting
    4. Option D: Disarming pathogen vectors

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  59. Question 59 (AIPMT 2012, Q89)

    Sexual Reproduction in Flowering PlantsBotanyMedium
    Which one of the following statements is wrong?
    1. Option A: Vegetative cell is larger than generative cell
    2. Option B: Pollen grains in some plants remain visible for months
    3. Option C: Intine is made up of cellulose and pectin
    4. Option D: When pollen is shed at two-celled stage, double fertilization does not take place

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  60. Question 60 (AIPMT 2012, Q90)

    Human ReproductionZoologyMedium
    Identify the human development stage shown below as well as the related right place of its occurrence in a normal pregnant woman, and select the right option for the two together.
    1. Option A: Option (1)
    2. Option B: Option (2)
    3. Option C: Option (3)
    4. Option D: Option (4)

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