AP BIOLOGY

HEREDITY

LAW OF DOMINANCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What would be the genotype if a recessive character is expressed phenotypically?
A
HH
B
Hh
C
hh
D
hH
Explanation: 

Detailed explanation-1: -Only individuals with an aa genotype will express a recessive trait; therefore, offspring must receive one recessive allele from each parent to exhibit a recessive trait.

Detailed explanation-2: -A homozygous genotype contains two identical alleles. An individual can either be homozygous dominant (ex: HH) or homozygous recessive (ex: hh).

Detailed explanation-3: -A genotype describes an organism in terms of its combination of genes. e.g. HH, Hh and hh are all shorthand descriptions for genotypes. An organism’s phenotype is a description based on its observable characteristics, i.e. what an organism looks like, as a result of its genes, interacting with its environment.

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