51. Match the following columns.
Column I
Column II
a. Genetic drift
1. Change in the population's allele frequency due to chance alone
b. Natural selection
2. Difference in survival individuals
c. Gene flow
3. Immigration or emigration changes the allele frequency
d. Mutation
4. Source of the new alleles
| Column I | Column II |
| a. Genetic drift | 1. Change in the population's allele frequency due to chance alone |
| b. Natural selection | 2. Difference in survival individuals |
| c. Gene flow | 3. Immigration or emigration changes the allele frequency |
| d. Mutation | 4. Source of the new alleles |
52. The RNA polymerase at the Ori C site of replication is called
53. The term palindromic DNA was first used by
54. The 'Theory of Evolution' was put forward by
55. The first macromolecules to be originated during prebiotic molecular evolution are
56. S. W. Fox has synthesized polypeptides by heating a mixture of amino acids to 160°C to 210°C for several hours which he called
57. Coenozoic era is known as an age of
58. Differentiation of somatic tissues produces artificial embryos which are called
59. Study of newly born up to the age of 3 months is called
60. In a non-overlapping genetic code
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