1. Semi-conservative mode of Replication in prokaryotes was proved by :
2. What will happen if glucose is completely absent from the bacterial growth medium ?
3. Lac repressor inhibits the functioning of Lac Operon, by binding on :
4. In normal condition an anticodon GAG (of tRNA) binds with codon CUC (of mRNA) and brings a.a. Leucine with it during protein synthesis, if the anticodon GAG (of (tRNA) binds with codon CUU (of mRNA) which a.a. (amino acid) the tRNA will bring ?
5. Which among the following is responsible for maternal inheritance?
6. Which among the following combination of protein(s) is required for MMR (Methyl Mismatch Repair)?
7. Topoisomerase I and II having the ability of both :
8. In transition mutation :
9. In phenylketonuria (PKU) the abnormal increase of phenylalanine level in the blood is due to absence of the enzyme :
10. Which amongst the following is an example of trisomy ?
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11. If the frequency of crossing over (% recombination) between two loci is 8.8% the map distance between these two loci will be :
12. In which mode of transfer of genetic material, the naked DNA is taken up directly by recipient bacteria, sometimes mediated by surface competence factors ?
13. The eye colour of Drosophila is :
14. Which of the following statements is "correct" regarding the ABO blood system?
15. Juvenile hormone (JH) is produced by :
16. The organisms can tolerate only narrow range of salinity are called :
17. The aquatic ecoystem is said to be Eutrophic when it is enriched by :
18. The flow of energy in an ecosystem is always :
19. The area that acts as a boundary or a transition between two ecosystem is called
20. Who among the following stated the habitat is an organisms address and the ecological niche is its profession?
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21. According to Neo-Darwinism natural selection operates through
22. Which of the following is referred to as micro-evoution?
23. Group of members which are morphologically identical but genetically different are termed as :
24. What is the term given to a duplicate specimen of original type?
25. Two poisonous species of moths that live in overlapping habitats have a similar coloration. This is an example of:
26. Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as :
27. Wings of insects and birds have become flat, large and streamlined. This is an example of :
28. The interation in which an individual gives up or sacrifices some of its own reprodutive potential to benefit another individual is called :
29. An environmental stimulus that can be used to entrain an endogenous clock is called a :
30. The tendency of population to remain in genetic equilibrium may be disturbed by :
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31. The organisms with high parental care will also show :
32. In a population of 1000 individuals 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data the frequency of allele A in the population is :
33. The notochord is one of few prominent structural features in which embryo is of about :
34. Which cells of the testis provide nourishment to spermatozoa ?
35. Bones of vertebrates are derived from embryonic :
36. Migration of individual cells from the surface into the embryo's interior is termed as :
37. Superficial cleavage is found in :
38. The hormone involved in the metamorphosis of tadpole is:
39. Epibolic morphogenetic movements occur only in the prospective:
40. The eye cup rudiment develops into the optic vesicle which acts as secondary inductor and induce the epidermis to form:
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41. Endocrine glands are :
42. Testosterone is produced by :
43. Ovulation occurs under the influence of :
44. The releasing hormones are produced by :
45. A hormone being produced biotechnologically on commercial scale in India is :
46. Name of the gland who grows up to puberty and then diminishes :
48. Theory of inheritance of acquired characters is proposed by :
49. The smallest gene effected by mutation is :
50. Five-kingdom system of classification was proposed by :
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