Use the Following Information to Answer the Following Questions

question 40

Multiple Choice

Use the following information to answer the following questions.
In those parts of equatorial Africa where the malaria parasite is most common, the sickle-cell allele constitutes 20% of the β hemoglobin alleles in the human gene pool.
-If the sickle-cell allele is recessive, what proportion of the population should be susceptible to sickle-cell anemia under typical conditions?

• A) 0.04
• B) 0.16
• C) 0.20
• D) 0.32
• E) 0.80

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Definitions:

Exons

Sequences of DNA within a gene that are transcribed to messenger RNA and then translated into protein.

Phylogenetic Analysis

The study of the evolutionary relationships among groups of organisms, which is often represented in a tree format.

Cichlid Fishes

A diverse group of freshwater fish known for their bright colors and complex behaviors, particularly in mating and parenting.

Out Of Africa

A theory that suggests all modern humans originated from a common ancestral population in Africa before dispersing to other parts of the world.