AIPMT MAIN2008Zoology-Evolution

AIPMT MAIN 2008 Zoology Genetic Drift and Gene Flow MCQ Question

Type: MCQ-conceptual-Medium-Class 12

What is true about the isolated small tribal populations?

A

There is no change in population size as they have a large gene pool

B

There is a decline in population as boys marry girls only from their own tribe

C

Hereditary diseases like colour blindness do not spread in the isolated population

D

Wrestlers who develop strong body muscles in their life time pass this character on to their progeny

Correct Answer

Option B

Detailed Explanation

In isolated small tribal populations, there is often a decline in population due to inbreeding, as individuals tend to marry within the tribe. This can lead to a smaller gene pool and increased prevalence of genetic disorders.

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