AP BIOLOGY

Detailed explanation-1: -a) GG b) gg c) Gg d) none of the above. The correct answer is C. A heterozygous genotype has two different alleles that are involved in expressing a trait.

Detailed explanation-2: -A genotype that has two copies of the same allele, for example: GG or gg, is called homozygous. Alternatively, a genotype that has two different alleles, for example: Gg, is called heterozygous.

Detailed explanation-3: -The “GG” genotype of rs26802 variant in the ghrelin gene is a potential protective factor against nonalcoholic fatty liver disease.

Detailed explanation-4: -An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype.

Detailed explanation-5: -Since the plant with the green pods is heterozygous for the trait, its genotype must be Gg. The problem does not state whether the plant with yellow pods is homozygous or heterozygous.