HIV infection, which eventually causes AIDS, is an epidemic in modern human popu

Question

HIV infection, which eventually causes AIDS, is an epidemic in modern human populations. HIV attacks the immune system in humans by entering immune cells via a specific protein receptor. However, some individuals have acquired a new DNA sequence change that alters this protein receptor so that it does not allow HIV to enter into the immune cell. People with this new DNA sequence variant are immune to HIV/AIDS.

Which of the following evolutionary forces is most likely involved in this scenario?

A. Mutation

B. Selection

C. Gene Flow

D. Genetic Drift

E. No evolutionary forces are involved

A. Mutation

B. Selection

C. Gene Flow

D. Genetic Drift

E. No evolutionary forces are involved

Explanation / Answer

This is an example of mutation because when the DNA sequence is mutated then it would alter the protein code and therefore not lead to the protein receptor formation, therefore this is an example of Mutation.

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