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Biology, 29.09.2021 14:00 ramberson101

Kiểu gen nhân/ Kiểu gen TBC/ Kiểu hình:- rf rf / S bất dục / Phấn hư- rf rf / N hữu dục / Phấn tốt- Rf Rf hoặc Rf rf / N hữu dục / Phấn tốt- Rf Rf hoặc Rf rf / S bất dục / Phấn tốtA, B, C, D là những dòng thuầnBắp lai đơn có công thức: AxB và CxDBắp lai kép có công thức: (AxB) x (CxD)Kiểu gen của bắp lai đơn và lai kép như thế nào để khi sản xuất hạt giống khỏi phải khử đực và khi trồng sản xuất khỏi phải bổ sung phấn

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