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习题练习:Topic A1.2 Nucleic acids



 作者: admin发布日期: 2025-01-24 09:47   总分: 10分  得分: _____________

答题人: 游客未登录  开始时间: 25年01月24日 09:47  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  1. As they do not have all the characteristics of living things, viruses ry8vsk5pe,6a are not considered to be livinevayk 8 ps,56rg
organisms. Therefore which is the best evaluation of the statement, “One universal property of
living things is that they use DNA as the genetic material?”

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  2. Which is the most accurate description of a nucleotide) 36rgle:icsyg tqkf2. pa9 4a?

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  3. Which of the following describes the backbonrvk w, w v1eu3z0a.s3ce of DNA?

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4#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
4. Label the following parts of DNA on the diagram of DNA shown belowfava rc+,kwf-ee,p40 . (5 marks) f4ew-packf+ ar,e,v0
(a) Hydrogen bond
(b) Covalent bond
(c) Nitrogenous base
(d) Deoxyribose sugar
(e) A single nucleotide (by drawing a circle encompassing a single nucleotide)
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5#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
5. Explain, using the DNA diagram, the +c2i bxnx1* rutfo*c7 qgh 3w1meaning of complimentary base pairing.
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6#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
6. Outline how complimentary base9; rgbl2 dgou0 pairing is important in the replication of DNA as the genetic m;o dg0g92bu lraterial.
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7#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
7. Complete the table to outline the do qh. 3m );m5rudh6,sqtuwo f5xq37ehifferences between the structure of RNA and DNA dfq5h 3)u3o, 6mt;u.eqmw5qhso xh r7
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8#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
8. DNA is the genetic material of all ycd* yiuo1 n43living organisms. Outline how it is possible for these universal DNA molecul*oc i3n ydu1y4es to store varied genetic information both within species and between species.
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9#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
9. Hershey and Chase used viral bacteriophages to demonstrate that DNA, not pro qexb fp*rva, /pm8lz/9/kl; ptein, is the genetic material. This investp,x;k/ml p/a f*8q9 rl/ vbpezigation used radioactive phosphorus to label DNA.

Outline how radioactive labelling was used in this investigation.
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10#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
10. A nucleosome is a structural unit of a chromosome. Descr ehcqj2ly o-.0ibe the structure ofeyq 0ojlc. 2h- a nucleosome.
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