AIPMT MAINS2008Zoology-Evolution
AIPMT MAINS 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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