From the cross Aa × Aa, the probability of producing a homozygous dominant offspring is a. 75%. b. 50%. c. 25%. d. 100%.

2 answers
Question:

From the cross Aa × Aa, the probability of producing a homozygous dominant offspring is
a. 75%.
b. 50%.
c. 25%.
d. 100%.

Answers

Using a punnet square (courtesy of grigore mendel), you will find that crossing Aa Aa creates theoretical offspring that are 25% AA, 50% Aa, and 25% aa.Hope it helps

I think it is 25%. When you draw a genetic diagram for Aa and Aa the results are AA - homozygous dominant, Aa - heterozygous dominant, Aa - heterozygous dominant and aa - homozygous recessive. So that is 1 out of 4, therefore 25%.

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