If an albino (aa) mates with a person homozygous for normal pigment (aa),

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.

2 months ago

Solution 1

Guest Guest #411
2 months ago
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.

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