Question

Individuals that are heterozygous for the sickle-cell anemia allele have reduced susceptibility to malaria. this demonstrates that natural selection does not always eliminate ________ alleles.

Answer 1

This shows that recessive alleles are not always eliminated by natural selection.

Natural selection: what is it?

• One method of evolution is natural selection.
• More environment-adapted organisms are more likely to survive and pass on the genes that contributed to their success. Over time, species change and diverge as a result of this process.
• Natural selection, which occurs over time as heritable features that aid organisms in surviving and reproducing grow more prevalent in a population, was another process Darwin proposed for evolution.

What variables influence natural selection?

Reproduction, heredity, variation in organism fitness, and diversity in individual traits among population members are the four prerequisites for natural selection to take place.

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