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powelltyr2002
29.09.2021 •
Biology
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 tốt A, B, C, D là những dòng thuần Bắp lai đơn có công thức: AxB và CxD Bắp 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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Ответ:
D. nucleotides
i'm not sure