Genetic studies have identified an allele (32) that seems to provide protection against AIDS. Which of the following would most likely explain the reason why our population has this mutation?

A. Our bodies are designed to protect us
against a myriad of pathogens. Our immune
system was preparing for future viruses.
B. This mutation likely benefited the human
population against some other early
pathogen.
C. This mutation was initially harmful, but it
now affords us protection against AIDS.
D. Mutations that become prominent in a
population initially were neutral but then
become advantageous later on.


B

Biology & Microbiology

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