Biology
Senior High
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這題要怎麼算？ 要怎麼知道3:3:1:1是代表什麼？
基因型為RrYy者(外表型為顯性性狀,R和Y沒有連鎖)與一不知基因型者交配,得子代外表型
四種,且比例為3:3:1:1,則此未知親代基因型為何?
(A)RrYy
(B)RRYy
(C)Rryy
(D)rryy
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