Evolution Question 18
18. Variation in gene frequencies within populations can occur by chance rather than by natural section. The is referred to as:
(a) Genetic drift
(b) Random mating
(c) Genetic load
(d) Genetic flow
Show Answer
Answer : a
Hints & Solution
(a) Genetic drift is variation in gene frequencies within populations can occur by chance rather than by natural selection, sometimes the change in allele frequency is so different in the new sample of population that they become a different species. The original drifted population becomes founders and the effect is called founder effect.
