1. Nucleic acids are made of
2. Watson and Crick are known for their discovery that DNA is
3. The number of base substitution possible in amino acid codons is
4. Reverse transcriptase is
5. Smallest gene affected by mutation is
6. A DNA nucleotide chain has AGCTTCGA sequence. The nucleotide sequence of other chain would be
7. Who proved that DNA is basic genetic material?
8. The process of translation is
9. Nonsense codon takes part in
10. Enzyme required for transcription is
11. An anticodon of tRNA can recognise more than one codon of mRNA. It is
12. Khorana et al synthesised RNA with copolymer of UGUGUGUGUG... It pro-duced a peptide with alternate cysteine and valine. The codons for the two are
13. Usual method of DNA replication is
14. Ligase is an enzyme required for
15. Transcription involves
16. Semiconservative DNA/chromosome replication using N15 was demonstrated by
17. Initiation codon of protein synthesis (in eucaryotes) is
18. Barr body is associated with
19. Number of barr bodies in human female is
20. Autosomes present in human sperm are
21. Lyon's hypothesis is connected with
22. One of the following is a random process
23. Chromosome complement 2n-1 is
24. Theory proposed by Bridges is
25. DNA parts which can switch their position are
26. Formation of multivalents in meiosis is due to
27. DNA is associated with basic protein
28. Sudden inheritable genetic change is
29. The scientist who used X-rays as mutagen for the first time was
30. A sex linked trait/disease is
31. Linkage was discovered by
32. Colour blindness is due to one
33. Down's syndrome/mongolism is due to
34. Crossing over takes place in
35. An octamer of 4 histones complexed with DNA forms
36. The word chromosome was coined by
37. Chromosomes were first seen by
38. How many types of gametes will be produced by individuals of AABbcc genotype?
39. Heterosis is
40. Cross between AaBB and aaBB will form
41. Phenotypic dihybrid ratio is
42. A cross between F1hybrid and a recessive parent (Tt ×tt) gives a ratio of
43. Monohybrid ratio is
44. The term eugenics was first applied by
45. Number of X - chromosomes in Turner's syndrome is
46. Klinefelter's syndrome has
47. Heterozygous tall (Tt) and dwarf (tt) Pea plants are crossed. The ratio in the offspring shall be
48. RR (Red) Antirrhinum is crossed with white (WW) one. Offspring RW are pink. This is an example of
49. Initiation Codon in higher plants is
50. Start codon AUG stands for the amino acids.