Từ 7 tế bào sinh dục sơ khai dực nguyên phân liên tiếp 5 lần. Các tế bào con sau nguyên phân đều chuyển sang vùng sinh trưởng và qua vùng chín giảm phân bình thường. a) Xác định số lượng tinh trùng được tạo thành? b) Nếu hiệu suất thụ tinh của tinh trùng là 25% , hãy tính số hợp tử được tạo thành? Giúp mh vs mn ơi!!!!!!

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