Sickle-Cell Anemia Is a Characteristic Involving Incomplete Dominance

question 135

Multiple Choice

Sickle-cell anemia is a characteristic involving incomplete dominance.Suppose that a person is heterozygous for this characteristic.What will be the state of his or her red blood cells?

• A) They will consist of a mixture of some normal round cells and some abnormal sickle-shaped cells.
• B) They will consist of normal round cells in childhood, but mutate into sickle-shaped cells by adulthood.
• C) They will consist of only sickle-shaped blood cells.
• D) They will consist of no sickle-shaped blood cells.

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A racial or ethnic group in the United States with ancestry from any of the black populations of Africa.