having no dimples is a recessive trait in humans that is controlled by a single gene. how many recessive…

having no dimples is a recessive trait in humans that is controlled by a single gene. how many recessive alleles must a person have to have no dimples?\na. 3\nb. 2\nc. 0\nd. 1

having no dimples is a recessive trait in humans that is controlled by a single gene. how many recessive alleles must a person have to have no dimples?\na. 3\nb. 2\nc. 0\nd. 1

Answer

Brief Explanations:

In genetics, for a recessive trait controlled by a single - gene, an individual must have two copies of the recessive allele to express the recessive phenotype. Since having no dimples is a recessive trait, a person needs two recessive alleles.

Answer:

B. 2