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ylantqd
2 năm trước
Cho 100 TB ( 2n = 40NST) nguyên phân 6 lần bằng nhau các tế bào con tạo ra chuyển sang giảm phân . a : tính sô tế bào con sau giảm phân . b: tính số NST mà cung cấp cho 2 quá trình trên
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