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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, m/*i n) 2q ubnlf4vuo7viruses are not considered to be livm*qfbi4n2/7lov )u uning
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 cck2ib7 uy15lzbh8x- 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 following describes the backbone of DNA2s -05t-qrk qcfu0dvc?

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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 below.dk9 brna:/) kr8gh mb3 (5 marks) / :gbk9 nhdbk8mr )3ar
(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 meaninw;-eke 8s1p0y) zu)xy r rt4syg 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 complimh p5r il4uaqj0c 0z/3ientary base pairing is important in the replication of DNA as the genetjuziil054 rp0/q c3a hic material.
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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 differences between the structure .ugm7v 240rl+ ly-1mcjyaz1a tvys8s of RNA and DN+vamuy z2a-.1y0g y7l rslt8scmvj14 A
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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 organi x-od9jqn3qz/+0d hv nsms. Outline how it is possible for these universal DNA molecules to store djx- 9qndn+0vqhz3 /ovaried 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 demonstrat7i x7.j v3zcyn v5ej2me that DNA, not protein, is the gene3e.z7m5vn 2jvycj ix7tic material. This investigation 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 chrja qq6y:2e4ngb +- r)7rvw jtlomosome. Describe the structure of a nucleosome.tg 4 v7 r-q):earqbywj+62jnl
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