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congdu1201
2 năm trước
Lai 2 giống bí ngô quả tròn có nguồn gốc từ 2 địa phương khác nhau, người ta thu được F1 toàn cây quả dẹt và F2 gồm 58 cây quả dẹt : 34 cây quả tròn : 6 cây quả dai. Lai phân tích F1 sẽ thu được tỉ lệ A. 1 tròn : 2 dẹt : 1 dài B. 1 dẹt : 2 tròn : 1 dài C. 3 dẹt : 1 dài D. 3 tròn : 3 dẹt : 1 dài : 1 bầu trình bày giùm em cách giải bài này ,em vote cho 5 sao
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