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August 28, 2015

Homework Help: Science

Posted by Dave on Monday, March 5, 2007 at 7:53pm.

What is the ratio of phenotypes in the offspring produced by the cross Aa x Aa, assuming complete dominance for the trait?
a. 100% dominant (D)
b. 100% recessive (R)
c. 25% D, 75% R
d. 50% D, 50% R
e. 75% D, 25% R

One gets AA, Aa, aA, aa so three of the four has a dominate A.

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