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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: 匿名未登录  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 are t2;zp6z 7n5e ykd/wu anot considered to zez2 d wp a;tkn6u/7y5be living
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 de4v8;d:n+ us pxhj8f kcscription of a nucleotide?

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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 followinx) u1i ykvm35lg describes the backbone 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 shoiq6subt v/ r87 c/r;*dhxphj0wn below. (5 marks) 8p/t hbc/ 6iv 7rdsju;0rhqx*
(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, theo5mb+( ek xe)ak pt6nd;t-p,j meaning 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 base pairing is important iba 8yka3m 5f *3mjr,rdn the replication of DNA as the genetic mate8 ja,m rdkb3yma*rf3 5rial.
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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 differenz 5m*l)o udl)rk*e:bi fu 7w z7s8hr.lces between the structure of RNA and57l mob8r 7ilr*skz)zh f.)eu*w d:lu DNA
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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 living organisms. +wp6q3k 1q ;ose)hyl8su xe3c Outline how it is possible for these universal DNA molecules to store varied genetic information both within sp1 3sheqy+eu3q 86;koc )w xlspecies 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 DNAims0 3g9u(yo8c2nn4crvecx5 , not protein, is the genetic material. This investigation used radioactive phosphorus r2 0ux(em9 vcs cnio4g3y8c5nto 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 ofdg789p.lqg0 jh *+o wpxfuq:f a chromosome. Describe the structure of a nucleosome.7gq wu9o f0gq8: .phjfp d*lx+
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