Useful for Medical Entrance Exams: AIPMT / AFMC /JIPMER / AIIMS / JIPMER /Manipal UGET / CMC Vellore / AMU/ BHU

NEET Biology 2013 Questions and Answers

NEET  Biology 2013
11. Which of the following Bt crops is being grown in India by the farmers
(1) Cotton
(2) Brinjal
(3) Soyabean
(4) Maize
12. Macromolecule chitin is
(1) Phosphorus containing polysaccharide
(2) Sulphur containing polysaccharide
(3) Simple polysaccharide
(4) Nitrogen containing polysaccharide
13. One of the representatives of Phylum Artropoda
(1) silverfish
(2) pufferfish
(3) flying fish
(4) cuttlefish
14. Secondary productivity is rate of formation of new organic matter by
(1) Parasite
(2) Consumer
(3) Decomposer
(4) Producer
15. The incorrect statement with regard to Haemophilia is :
(1) It is a recessive disease
(2) It is a dominant disease
(3) A single protein involved in the clotting of blood is affected
(4) It is a sex linked disease
16. Advantage of cleistogamy is
(1) More vigorous offspring
(2) No dependence on pollinators
(3) Vivipary
(4) Higher genetic variability
17. Transition state structure of the substance formed during an enzymatic reaction is
(1) permanent but unstable
(2) transient and unstable
(3) permanent and stable
(4) transient but stable

18. In China rose the flowers are:
(1) Actinomorphic, epigynous with valvate aestivation
(2) Zygomorphic, hypogynous with imbricate aestivation
(3) ) Zygomorphic, epigynous with twisted aestivation
(4) Actinomorphic, hypogynous with twisted aestivation
19. Which of the following are likely to be present in deep sea water?
(1)Eubacteria
(2) Blue green algae
(3) Saprophytic fungi
(4) Archaebacteria
20. Variation in gene frequencies within population can occur by chance rather than by natural selection. This is referred to as:
(1) Genetic drift
(2) Random mating
(3)Genetic load
(4) Genetic flow
Answers
11. (1) Cotton
12. (4) Nitrogen containing polysaccharide
13. (1) silverfish
14. (2) Consumer
15. (2) It is a dominant disease
16. (2) No dependence on pollinators
17. (2) transient and unstable
18. (4) Actinomorphic, hypogynous with twisted aestivation
19. (4) Archaebacteria
20. (1) Genetic drift

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