Ruồi giấm có bộ NST 2n = 8, trong đó mỗi cặp NST đều có cấu trúc khác nhau. Nếu trong quá trình giảm phân có 3 cặp NST tương đồng mà mỗi cặp xảy ra trao đổi chéo tại một điểm thì số giao tử được tạo ra là:   

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Một số câu hỏi khác có thể bạn quan tâm.

• Mark the letter A, B, C or D on your answer sheet to indicate the word whose the underlined part differs from the other three in pronunciation in each of the following question:   

• Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions: 

• Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:  

• Mark the letter A, B, C or D on your answer sheet to indicate the word whose bold and underlined parts pronounced differently from that of the rest in each of the following questions:

• Mark the letter A, B, C or D on your answer sheet to indicate the word whose bold and underlined parts pronounced differently from that of the rest in each of the following questions:  

• Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part is pronounced differently from that of the rest in each of the following questions:  

• Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:  

• Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:  

• Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:   

• Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions: