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manhhoang28122004
2 năm trước
Có 50 TB sinh dục sơ khai đực nguyên phân liên tiếp 5 lần. a) Tính số TB con được tạo thành? b) Tất cả TB con đều tham gia vào quá trình giảm phân hình thành giao tử. Tính số tinh trùng được tạo thành. c) Tất cả tinh trùng tham gia vào quá trình thụ tinh. Sau thụ tinh thu được 400 hợp tử. Tính hiệu suất thụ tinh của tinh trùng?
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