Which of the following best describes sickle-cell anemia? Caused by environmental factors that an individual was exposed to during pregnancy.
A hereditary genetic mutation that causes a resistance to malaria.
An inherited disorder that increases the risk of contracting malaria from mosquitos.
A genetic mutation that is inherited from a dominant allele of one parent.

A genetic mutation that is inherited from a dominant allele of one parent

Explanation:

You inherit 1 set from your mother and 1 set from your father. To be born with sickle cell disease, a child has to inherit a copy of the sickle cell gene from both their parents. This usually happens when both parents are "carriers" of the sickle cell gene, also known as having the sickle cell trait.

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