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.

The right answer is B) heterozygous.

Sickle cell disease is a genetic, inherited disease affecting red blood cells, in which a child can be ill only if both parents are transmitters (at least heterozygous, carrier of the trait), ie asymptomatic carriers of the gene for sickle cell disease. It is a hereditary autosomal recessive disease, that is, it affects girls as well as boys, and only manifests itself when one carries two genes of the disease (homozygous). This disease is genetic and therefore not contagious.

a "theory" a suggestion that is not 100 % accurate, or a figure. some people say its a theory because they of all the passed theory's about one subject. it depends sometimes theory might be accurate and sometimes they are.