In some parts of Africa, the frequency of individuals who are heterozygous for the sickle-cell anemia allele is higher than the frequency in North America, presumably because this reduces the frequency of malaria. Such a relationship is related to which of the following?
A) Mendel's law of independent assortment
B) Mendel's law of segregation
C) Darwin's theory of natural selection
D) Punnett square's modelling inheritance

Question

Quizplus · Accepted Answer

This relationship is an example of Darwin's theory of natural selection, where the heterozygous advantage for the sickle-cell allele in malaria-endemic regions of Africa leads to a higher survival rate of individuals with this genotype, thus increasing its frequency in the population.

In Some Parts of Africa, the Frequency of Individuals Who