Question Mode

Multiple Choice Question

Which statement best describes the inheritance of sickle-cell disease?

Multiple choice question.

Sickle-cell disease is an autosomal recessive disease, meaning it is carried on recessive alleles and requires both diseased alleles in order to be expressed.

Sickle-cell disease is a autosomal codominant disease, meaning if no alleles are expressed, the individual is healthy; if one allele is expressed, the individual has a mild form of the disease; and if two alleles are expressed, the individual has a severe form of the disease.

Sickle-cell disease is an autosomal dominant disease, meaning it is carried on dominant alleles and requires only one diseased allele in order to be expressed.

Sickle-cell disease is an X-linked recessive disease, meaning it is carried on the X chromosome and requires both diseased alleles in order to be expressed.