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nhatdz2000
2 năm trước
Cho A hoa đỏ , a hoa trắng. Cho P thuần chủng. F1 thu được 100% hoa đỏ. F2 thu được 3 đỏ: 1 trắng. Xác định TLKG - TLKH ở F3 khi cho : a) Cây hoa đỏ F1 tự thụ phấn b) Cây hoa đỏ F1 ngẫu phối c) Cây hoa đỏ F1 giao phấn với cây hoa trắng.
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