Cho biết mỗi cặp tính trạng do một cặp gen quỵ định và di truyền trội hoàn toàn; tần số hoán vị gen giữa A và B là 20%. Xét phép lai , kiểu hình A-bbddE- ở đời con chiếm tỉ lệ         

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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 sentence that is closest in meaning to each of the following questions:

  “Why don’t you participate in the volunteer work in summer?" said Sophie.           

• Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:   

  The students at this school are required to wear uniforms on weekdays.           

• Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions: 

   “No, it’s not true. I didn't steal the money!" Jean said.         

• Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:

  My uncle didn’t recognize me until I spoke.         

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:

  In spite of his poverty, he led a devoted life to the revolutionary cause.     

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:

  I thought I should not stay at home yesterday.  

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:

  However old and worn his clothes were, they look clean and of good quality.         

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:  

  “Don’t forget to hand in the report, Pete!”, said Kate.      

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:

  If it hadn’t been for the wind, the fire would never have spread so fast.  

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:

  The gate was closed to stop the children running into the road.