Question

sickle cell disease in an inherited blood disorder. it is a recessive trait. that means you can carry one recessive allele for the disease and not have the symptoms. in this case, if you were a carrier and did not have the disease, your genotype for sickle cell would be
a dominant.

b heterozygous.

c homozygous.

d sex - linked.

Explanation:

Sickle cell disease is a recessive trait. A carrier has one recessive allele (for the disease) and one dominant allele (normal), so their genotype is heterozygous (two different alleles). Dominant refers to an allele type, not a genotype; homozygous means two identical alleles (would cause disease if recessive); sex-linked relates to chromosome location, not carrier status here.

Answer:

B. heterozygous