If an albino (aa) mates with a person homozygous for normal pigment (aa), select one: a. half of the offspring are normal. b. half of the offspring are albinos.
Biology
jadarichardson5820
Question
If an albino (aa) mates with a person homozygous for normal pigment (aa), select one:
a. half of the offspring are normal.
b. half of the offspring are albinos.
c. all offspring are normal.
d. all offspring are albinos.
e. none of these choices is correct.
a. half of the offspring are normal.
b. half of the offspring are albinos.
c. all offspring are normal.
d. all offspring are albinos.
e. none of these choices is correct.
1 Answer
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1. User Answers BioWizard
One parent is an albino with the genotype aa (recessive homozygous), while another parent has genotype AA (dominant homozygous). If they mate:
Parents aa x AA F1 generation: Aa Aa Aa Aa
This means that c. all offspring are normal.
All of them are carriers of the albino allele (a), but albinism is expressed only when there are two recessive alleles.