[SINH 9] ÔN TẬP HKI - CHƯƠNG III
Quiz
•
Biology
•
9th Grade
•
Practice Problem
•
Medium
Trần Châu
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bốn loại đơn phân nào cấu tạo nên phân tử ADN?
A, U, G, M.
A, T, G, X.
A, T, U, X.
A, U, G, X
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bốn loại đơn phân nào cấu tạo nên phân tử ARN?
A, U, G, X.
A, T, G, X.
A, T, U, X.
A, U, G, T
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chiều dài một vòng xoắn của phân tử ADN là bao nhiêu?
0,34 Å.
3,4 Å.
34 Å.
340 Å.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chiều xoắn của phân tử ADN là
Chiều từ trái sang phải.
Chiều từ phải sang trái.
Cùng chiều di chuyển kim đồng hồ.
Xoắn theo mọi chiều khác nhau.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mỗi vòng xoắn của phân tử ADN có chứa bao nhiêu nucleotit ?
10.
20.
30.
40.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đại phân tử nào được dùng làm khuôn mẫu để tổng hợp nên ARN?
Prôtêin.
Ribôxôm.
ADN.
ARN.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Loại nuclêôtit nào không có ở ARN?
Ađênin.
Timin.
Uraxin.
Guanin.
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