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Since a Testcross Backcrosses with a Pure Homozygous Recessive Strain,the

Question 45

Multiple Choice

Since a testcross backcrosses with a pure homozygous recessive strain,the offspring of an Aa genotype crossed by an aa genotype would show which genotype(s) ?


A) aa only
B) Aa only
C) AA and Aa
D) Aa and aa

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