Multiple choice

High frequencies of genetically inherited diseases like thalessemia, haemophilia, etc in people who share a common ancestor is most likely the result of

  1. natural selection

  2. the founder effect

  3. genetic drift

  4. genomic selection
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This occurs when there is a small ancestral or founding population. The potentially numerous descendants of the founders often have similar genetic makeups. This explains why rare diseases are more frequent among descendants of people who had them.

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