NEET 2016
Previous Year Questions

The central dogma of molecular genetics states that the genetic information flows from:

The correct corresponding order of names of four aldoses with configuration given below respectively, is:

Which one of the following is wrong for fungi?

Methanogens belong to:

Select the wrong statement.

The label of a herbarium sheet does not carry information on:

Conifers are adapted to tolerate extreme environmental conditions because of:

Which one of the following statements is wrong?

The term 'polyadelphous' is related to:

How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram and turnip have stamens with different lengths in their flowers?

Radial symmetry is found in the flowers of:

Free-central placentation is found in:

Cortex is the region found between

The balloon-shaped structures called tyloses

A non-proteinaceous enzyme is

Select the mismatch.

Select the wrong statement.

A cell organelle containing hydrolytic enzymes is

During cell growth, DNA synthesis takes place in

Which of the following biomolecules is common to respiration-mediated breakdown of fats, carbohydrates and proteins?

A few drops of sap were collected by cutting across a plant stem by a suitable method. The sap was tested chemically. Which result indicates that it is phloem sap?

You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?

Phytochrome is a

Which is essential for the growth of root tip?

The process which makes major difference between C₃ and C₄ plants is

Which one of the following statements is not correct?

Which one of the following generates new genetic combinations leading to variation?

Match Column-I with Column-II and select the correct option using the codes given below.

In majority of angiosperms

Pollination in water hyacinth and water lily is brought about by the agency of

The ovule of an angiosperm is technically equivalent to

Taylor conducted the experiments to prove semiconservative mode of chromosome replication on

The mechanism that causes a gene to move from one linkage group to another is called

The equivalent of a structural gene is

A true breeding plant is

Which of the following rRNAs acts as structural RNA as well as ribozyme in bacteria?

Stirred-tank bioreactors have been designed for

A foreign DNA and plasmid cut by the same restriction endonuclease can be joined to form a recombinant plasmid using

Which of the following is not a component of downstream processing?

Which of the following restriction enzymes produces blunt ends?

Which kind of therapy was given in 1990 to a four-year-old girl with adenosine deaminase (ADA) deficiency?

How many hotspots of biodiversity in the world have been identified till date by Norman Myers?

The primary producers of the deep-sea hydrothermal vent ecosystem are

Which of the following is correct for r-selected species?

If '+' sign is assigned to beneficial interaction, '-' sign to detrimental interaction and '0' sign to neutral interaction, then the population interaction represented by '+' '-' refers to

Which of the following is correctly matched?

Red list contains data or information on

Which of the following sets of diseases is caused by bacteria?

Match Column-I with Column-II for housefly classification and select the correct option using the codes given below:

Choose the correct statement.

Study the four statements (A–D) given below and select the two correct ones out of them: A. Definition of biological species was given by Ernst Mayr. B. Photoperiod does not affect reproduction in plants. C. Binomial nomenclature system was given by R.H. Whittaker. D. In unicellular organisms, reproduction is synonymous with growth. The two correct statements are

In male cockroaches, sperms are stored in which part of the reproductive system?

Smooth muscles are

Oxidative phosphorylation is

Which of the following is least likely to be involved in stabilizing the three-dimensional folding of most proteins?

Which of the following describes the given graph correctly?

When a cell has stalled DNA replication fork, which checkpoint should be predominantly activated?

Match the stages of meiosis of Column-I to their characteristic features in Column-II and select the correct option using the codes given below:

Which hormones stimulate the production of pancreatic juice and bicarbonate?

The partial pressure of oxygen in the alveoli of the lungs is

Choose the correct statements.

Graves' disease is caused due to

Name the ion responsible for unmasking active sites for myosin for cross-bridge activity during muscle contraction.

Name the blood cells whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body.

Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilization.

Osteoporosis, an age-related disease of skeletal system, may occur due to

Serum differs from blood in

Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because

The posterior pituitary gland is not a 'true' endocrine gland because

The part of nephron involved in active reabsorption of sodium is

Which of the following is hormone releasing IUD?

Which of the following is incorrect regarding vasectomy?

Embryo with more than 16 blastomeres formed due to in-vitro fertilization is transferred into

Which of the following depicts the correct pathway of transport of sperms?

Match Column-I with Column-II and select the correct option using the codes given below:

Several hormones like hCG, hPL, estrogen, progesterone are produced by

If a colour-blind man marries a woman who is homozygous for normal colour vision, the probability of their son being colour-blind is

Genetic drift operates in

In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by

The chronological order of human evolution from early to recent is

Which of the following is the correct sequence of events in the origin of life?

A molecule that can act as a genetic material must fulfill the traits given below, except

DNA-dependent RNA polymerase catalyzes transcription on one strand of DNA which is called

Interspecific hybridization is the mating of

Which of the following is correct regarding AIDS causative agent HIV?

Among the following edible fishes, which one is a marine fish having rich source of omega-3 fatty acids?

Match Column-I with Column-II and select the correct option using the codes given below:

Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from

The principle of competitive exclusion was stated by

Which of the following National Parks is home to the famous musk deer or hangul?

A lake which is rich in organic waste may result in

The highest DDT concentration in aquatic food chain shall occur in

Which one of the following compounds shows the presence of intramolecular hydrogen bond?

The molar conductivity of a $0.5\ \text{mol dm}^{-3}$ solution of AgNO₃ with electrolytic conductivity of $5.76 \times 10^{-3}\ \text{S cm}^{-1}$ at $298\ \text{K}$ is:

The decomposition of phosphine $(PH_3)$ on tungsten at low pressure is a first-order reaction. It is because:

The coagulation values in millimoles per litre of the electrolytes used for the coagulation of $As_2S_3$ are given below: I. $(NaCl)=52$ II. $(BaCl_2)=0.69$ III. $(MgSO_4)=0.22$ The correct order of their coagulating power is:

During the electrolysis of molten sodium chloride, the time required to produce $0.10$ mol of chlorine gas using a current of $3$ amperes is:

How many electrons can fit in the orbital for which $n = 3$ and $l = 1$?

For a sample of perfect gas when its pressure is changed isothermally from $P_i$ to $P_f$, the entropy change is given by:

The van't Hoff factor $(i)$ for a dilute aqueous solution of the strong electrolyte barium hydroxide is:

The percentage of pyridine $(C_5H_5N)$ that forms pyridinium ion $(C_5H_5N^+H)$ in a $0.10\ \text{M}$ aqueous pyridine solution $(K_b\text{ for }C_5H_5N = 1.7 \times 10^{-9})$ is:

In calcium fluoride, having the fluorite structure, the coordination numbers for calcium ion $(Ca^{2+})$ and fluoride ion $(F^-)$ are:

If the $E^\circ_{cell}$ for a given reaction has a negative value, which of the following gives the correct relationships for the values of $\Delta G^\circ$ and $K_{eq}$?

Which one of the following is incorrect for ideal solution?

The solubility of $AgCl(s)$ with solubility product $1.6 \times 10^{-10}$ in $0.1\ \text{M}\ NaCl$ solution would be:

Suppose the elements $X$ and $Y$ combine to form two compounds $XY_2$ and $X_3Y_2$. When $0.1$ mole of $XY_2$ weighs $10\ \text{g}$ and $0.05$ mole of $X_3Y_2$ weighs $9\ \text{g}$, the atomic weights of $X$ and $Y$ are:

The number of electrons delivered at the cathode during electrolysis by a current of $1$ ampere in $60$ seconds is (charge on electron $=1.60\times10^{-19}\ \text{C}$):

Boric acid is an acid because its molecule:

AlF₃ is soluble in HF only in presence of KF. It is due to the formation of:

Zinc can be coated on iron to produce galvanized iron but the reverse is not possible. It is because:

The suspension of slaked lime in water is known as:

The hybridizations of atomic orbitals of nitrogen in $NO_2^+$, $NO_3^-$ and $NH_4^+$ respectively are: