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Khoi09
2 năm trước
Cho một cơ thể có kiểu gen Bb, cặp gen Bb nằm trên 1 cặp nhiễm sắc thể tương đồng. Mỗi gen đều dài 5100 A°, gen B có T=30%. Cặp gen Bb tự nhân đôi 3 lần môi trường nội bào cung cấp 12600 nuclêôtit loại X. a) Cơ thể trên giảm phân bình thường, tính số lượng từng loại nuclêôtit trong mỗi giao tử. b) Cho hai cơ thể có kiểu gen Bb lại với nhau. Tính số lượng từng loại nuclêôtit trong mỗi kiểu gen ở F1.
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