AIPMT MAIN 2008 Zoology Genetic Drift and Gene Flow MCQ Question
What is true about the isolated small tribal populations?
There is no change in population size as they have a large gene pool
There is a decline in population as boys marry girls only from their own tribe
Hereditary diseases like colour blindness do not spread in the isolated population
Wrestlers who develop strong body muscles in their life time pass this character on to their progeny
Correct Answer
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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