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nguyenquan14012001
2 năm trước
1 tế bào của người có bộ nhiễm sắc thể là 2n = 46. a) Nếu tế bào này nguyên phân liên tiếp 5 lần ở giai đoạn sinh sản thì môi trường phải cung cấp bao nhiêu NST đơn mới cho quá trình này? b) Nếu các tế bào con tạo ra ở quá trình nguyên phân nói trên, lớn lên, và đều thực hiện giảm phân để tạo ra các tinh trùng bình thường thì số tinh trùng tạo ra là bao nhiêu?
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