If a homozygous dominant AA is crossed with a homozygous recessive aa, the F2 generation obtained by selfing the F1 would be 25%AA, 50%Aa, and 25%AA.

 
  • 如果用纯合的显性基因AA与纯合的隐性基因aa杂交后产生的子一代自交(侧交),则可以得到25%25AA,50%25Aa,25%25aa的子二代。
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