AP BIOLOGY

HEREDITY

LAW OF DOMINANCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If a pea pod is heterozygous for green, what would be its genotype?
A
GG
B
Gg
C
gg
D
gG
Explanation: 

Detailed explanation-1: -In this case, the letters have already been selected-G for the dominant green allele and g for the recessive yellow allele. Step 2 Write the genotypes of the parents. Since the plant with the green pods is heterozygous for the trait, its genotype must be Gg.

Detailed explanation-2: -The “GG” genotype of rs26802 variant in the ghrelin gene is a potential protective factor against nonalcoholic fatty liver disease.

Detailed explanation-3: -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-4: -The green pea phenotype has a genotype of aa.

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