選修生物I-CH3-3

選修生物I-CH3-3

11th Grade

29 Qs

quiz-placeholder

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選修生物I-CH3-3

選修生物I-CH3-3

Assessment

Quiz

Biology

11th Grade

Practice Problem

Hard

Created by

東茂 葉

Used 3+ times

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29 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

在DNA的結構中,C、G之間可以形成幾個氫鍵?

2個
3個
4個
5個

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

在DNA的結構中,兩股核苷酸鏈之間的距離為何?

2nm
2μm
20nm
2dm

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

附圖為DNA中去氧核糖分子的結構,其中含氮鹼基應接在該分子的哪一個碳的位置?

1號碳
2號碳
3號碳
4號碳
5號碳

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

在DNA的結構中,A、T之間可以形成幾個氫鍵?

2個
3個
4個
5個

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

DNA的螺旋狀結構是哪一個科學家率先推論出來的?

薩登
摩根
查加夫
富蘭克林

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

假若某生物的精原細胞中,DNA的胞嘧啶含量約占20%,則其初級精母細胞中DNA的鳥糞嘌呤含量約占多少?

0.1
0.25
0.2
0.3

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

某段DNA的序列如附圖所示?請問此段DNA的含氮鹼基之間含有多少個氫鍵?

13個
26個
33個
39個

Answer explanation

 解答  C 

 解析  C=G有7個,之間有3個氫鍵 ⇒ 21個,A=T有6個,之間有2個氫鍵 ⇒ 12個,總共21+12=33個 

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