MDCAT Biology MCQ #3619

Humans have a high frequency of the sickle cell allele in areas with high malaria prevalence. What is the likely reason?

MDCAT Biology MCQ #3619

  1. Question 1

    Q1. Humans have a high frequency of the sickle cell allele in areas with high malaria prevalence. What is the likely reason?

    • A) Genetic drift
    • B) Natural selection
    • C) Mutation
    • D) Gene flow

    Answer: Natural selection

    Explanation: Natural selection favors sickle cell trait