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亲本杂交组合1.给出亲本基因型,判断子代基因型、表现型例1水稻的有芒(A)对无芒(a)为显性,抗病(B)对感病(b)为显性,这两对基因自由组合。
Parental cross combinations 1. Parental genotypes are given to determine progeny genotypes, expression type 1 rice awns (A) dominant to awnless (a), disease resistance (B) to disease (b) Dominantly, these two pairs of genes are freely combined.