Ask Question
25 September, 22:45

Which statement best explains the relationship between HbS allele frequency and malaria endemicity in Africa?

When an area is malaria free, the HbS allele frequency is between 0 and 2.02. When an area is holoendemic, the HbS allele frequency is between 0.52 and 4.04. When an area is malaria free, the HbS allele frequency is between 12.64 and 18.18. When an area is holoendemic, the HbS allele frequency is between 0 and 0.51.

+1
Answers (1)
  1. 26 September, 00:04
    0
    Answer;

    When an area is holoendemic, the HbS allele frequency is between 0.52 and 4.04.

    Explanation; HbS allele is the sickle cell hemoglobin allele that provides immunity to malaria. This is because people with the sickle cell allele have a selective advantage in areas where there is a high incidence of malaria. Therefore, natural selection will favor the population with HbS allele in a Malaria holoendemic (most individuals are infected) region. The HbS allele frequency in this population is expected to be high. After malaria is cured, the frequency of the HbS allele should decrease in regions with a lot of mosquitoes because having one copy of the HbS allele will no longer be advantageous in these regions.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Which statement best explains the relationship between HbS allele frequency and malaria endemicity in Africa? When an area is malaria free, ...” in 📘 Biology if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers