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zakiam123
2 năm trước
Biết mỗi gen quy định một tính trạng, alen trội là trội hoàn toàn, quá trình giảm phân diễn ra bình thường.Phép lai nào sau đây cho đời con có kiểu hình phân li theo tỉ lệ 1:1:1:1 A.$\frac{Ab}{ab}$x$\frac{aB}{ab}$ B.$\frac{Ab}{ab}$x$\frac{aB}{aB}$ C.$\frac{AB}{aB}$x$\frac{Ab}{ab}$ D.AabbxaaBb Giải thích,chi tiết,dễ hiểu ,chính xác giúp em với ạ
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