Question

According to Mendelian genetics, what phenotypic outcome do you expect in the progeny when you cross a heterozygote (Aa) with a homozygous dominant individual (AA)?
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1 point
75% will have the dominant phenotype, 25% will have the recessive phenotype
25% will have the dominant phenotype, 75% will have the recessive phenotype
50% will have the dominant phenotype, 50% will have the recessive phenotype
All with have the dominant phenotype

Answer 1

All will have the dominant phenotype.

Explanation: Gametes from Aa are A and a; from AA are only A. Offspring genotypes are 50% AA and 50% Aa — both show the dominant phenotype.