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tanyen.909
2 năm trước
Trong trương hợp di truyền liên kết, phép lai nào sau đây cho tỉ lệ kiểu hình 3:1 A. AB/aB x Ab/aB B. AB/ab x AB/ab C. AB/ab x Ab/aB D. Ab/aB x ab/ab
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II. Fill in each blank with the appropriate form of an idiomatic expression from this unit only. Todd: Mark! I was wondering when you would (1) ________________ home! Mark: Hi, Todd. I'm sorry, but I had a late meeting today. Todd: Usually you leave a note in the morning when you'll be late. Mark: I know, but I had to leave (2) _______________ to catch the bus to work I almost missed it. Todd: Say, what do you think? Should I go to a movie tonight with Sheila and Dick, or shouldn't I? I need to (3) ________________ soon. Mark: What do you mean? You haven't (4) ___________________________ your cold yet, have you? Todd: No, I haven't, but I feel much better. Mark: I think that you feel better (5) ______________________ only because you stayed home all day. Todd: I guess you're right. Do you think that I should (6) ____________ going with them until another time? Mark: That would be my advice.

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