Evolution Question 98
98. Genetic drift is change of
[1993]
(a) gene frequency in same generation
(b) appearance of recessive genes
(c) gene frequency from one generation to next
(d) none of the above
Show Answer
Answer : c
Hints & Solution
(c) Genetic drift is also known as Sewall Wright effect. It refers to the random changes in gene frequencies in a population by chance, either due to intensive inbreeding or death of a small section of population by natural calamity. Its effect is more marked in small isolated population.
