Câu 3: Một quần thể ban đầu có tỷ lệ kiêu gen aa bằng 0,1, còn lại là 2 kiểu gen AA và Aa. Sau 5 thế hệ tự phối, tỷ lệ thể dị hợp trong quần thể còn 0,01875. Thành phần kiểu gen của quần thể ban đầu là? Câu 5: Ở cà chua tính trạng quả đỏ là trội hoàn toàn so với quả vàng. Cho 3 cây quả đỏ tự thụ phấn trong đó chỉ có 1 cây dị hợp. Tỉ lệ kiểu hình ở đời con là?

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