The reason why mutations which are harmful do not eliminated from gene pool is that___________________?
Correct answer: C. They are recessive and carried by heterozygous individuals
- A. Making possible reproduction in all types of environments
- B. Genetic drift occurs because of a small population in to offsprings
- C. They are recessive and carried by heterozygous individuals
- D. They have future survival value
Explanation
A harmful recessive mutation can remain in a population because heterozygous individuals carry it without showing the harmful phenotype. Natural selection therefore cannot remove it efficiently while it is hidden in carriers.
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