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tuyetnguyen
2 năm trước
Ở cá chép khi thụ tinh tạo ra 7200 hợp tử phát triển thành 7200 cá con biết hiệu suất thụ tinh của tinh trùng là 50%, của trứng là 50%. Hãy tính số tế bào sinh tinh và sinh trứng
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