Bài 1: Ở 1 loài sinh vật, 1 tế bào sinh trừng nguyên phân 1 số lần liên tiếp để tạo ra các noãn nguyên bào. Tất cả các noãn nguyên bào này đều tiến hành giảm phân bình thường tạo ra 64 giao tử. Trong quá trình dã có 1152 NST tiêu biến và thế cực. a)Xác định số noãn nguyên bào tiến hành giảm phân b)Xác định số lần nguyên phân của tế bào sinh trưởng c)Xác định bộ NST của loài Bài 2:Có 3 hợp tử được kí hiệu A,B,C.Hợp tử a nguyên phân 3 lần liên tiếp, môi trường cung cấp 84 NST. Hợp tử B NP 4 lần liên tiếp. Các tế bào con chứa tổng số 256 NST, hợp tử C NP 2 lần liên tiếp ở kì giữa của lần NP đầu tiên trong hợp tử chứa 40 crômatit a)Hãy cho biết 3 hợp tử cùng loài hay khác loài b)Tính số tế bào con được tạo ra sau các lần NP cảu 3 hợp tử trên

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