NEET 2016 Biology Questions

Emerson’s enhancement effect and red drop have been instrumental in the discovery of – ( Phase 1)

Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening, carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of following options: ( Phase 1)

The process which makes major difference between C₃ and C₄ plants is: ( Phase 2)

Water-soluble pigments found in plant cell vacuoles are ( Phase 1)

In a chloroplast, the highest number of protons are found in: ( Phase 1)

Q33. A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilisation. In which of the following physiological groups would you assign this plant? ( Phase 1)

In majority of angiosperms ( Phase 2)

Seed formation without fertilisation in flowering plants involves the process of ()

The coconut water from tender coconut represents ()

The ovule of an angiosperm is technically equivalent to ( Phase 2)

Which of the following statements is not correct? ()

Which one of the following statements is not true? ()

Pollination in water hyacinth and water lily is brought about by the agency of ( Phase 2)

Proximal end of the filament of stamen is attached to the ()

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

A tall true-breeding garden pea plant is crossed with a dwarf true-breeding garden pea plant. When the F₁ plants were selfed, the resulting genotypes in the ratio of: ()

Match the terms in Column I with their descriptions in Column II and choose the correct option. ( Phase 1) Column I A. Dominance B. Codominance C. Pleiotropy D. Polygenic Column II (i) Many genes govern a single character (ii) In a heterozygous organism only one allele expresses itself (iii) In a heterozygous organism both alleles express themselves fully (iv) A single gene inheritance influences many characters

The mechanism that causes a gene to move from one linkage group to another is called ( Phase 2)

Pick out the correct statements. () (1) Haemophilia is a sex-linked recessive disease. (2) Down’s syndrome is due to aneuploidy. (3) Phenylketonuria is an autosomal recessive gene disorder. (4) Sickle cell anaemia is an X-linked recessive gene disorder.

A cell at telophase stage is observed by a student in a plant brought from the field. The teacher tells him that this cell is not like typical telophase cells. There is no formation of cell plate, and the cell contains more chromosomes than usual. What does this indicate? ()

In a test cross involving F₁ dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates: ( Phase 1)

Which of the following most appropriately describes haemophilia? ( Phase 1)

Inducer for lac operon is: ( Phase 1)

Trait not required for a molecule to be genetic material: ( Phase 2)

Taylor proved semiconservative chromosome replication in: ( Phase 2)

Which bacterial rRNA acts as structural RNA and ribozyme? ( Phase 2)

Starter codon is: ( Phase 1)

DNA-dependent RNA polymerase transcribes which strand? ( Phase 2)

The equivalent of a structural gene is: ( Phase 2)

Complex of ribosomes on single mRNA is called: ( Phase 1)

Which of the following restriction enzymes produces blunt ends? ()

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

Which of the following is not a feature of the plasmids? ( Phase 1)

The Taq polymerase enzyme is obtained from: ( Phase 1)

Stirred-tank bioreactors have been designed for: ( Phase 2)

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 a restriction endonuclease? ( Phase 1)

Which of the following is not required for any of the techniques of DNA fingerprinting available at present? ( Phase 1)

[] Fertilisation in humans is practically feasible only if:

[ Phase 2] Which of the following depicts the correct pathway of transport of sperms?

[] Identify the correct statement on ‘inhibin’:

[] Select the incorrect statement:

[] Changes in GnRH pulse frequency in females is controlled by circulating levels of:

[ Phase 2] Several hormones like hCG, hPL, estrogen, progesterone are produced by:

Which is the national aquatic animal of India? ( Phase 1)

Which of the following is correctly matched? ( Phase 2)

How many ‘hotspots of biodiversity’ in the world have been identified till date by Norman Myers? ( Phase 2)

Red list contains data or information on: ( Phase 2)

Which of the following national parks is home to the famous musk deer or hangul? ( Phase 2)

Which of the following is the most important cause of animals and plants being driven to extinction? ( Phase 1)