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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 o0 9akd74pvutma* b30rm2bp e af living things, viruses are not md aaapm30 0pv7btr9 *ub24 keconsidered to be 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 awconyb-ve bh:3 jp8 ,9v3ysl(ccurate description 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 following descr9pfdzyxp). rp+)rns 0bp;h j* ibes 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 onzb3ym:2n ekm1 the diagram of DNA shown below. (5 marks) 12: mmyz3kneb
(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 1tonq7n9 z b(iDNA diagram, the 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 ipota ,,h*dr 95nk zjl-mportant in the replication of DNA as the genetic maternoal dt-h 5,*j9 r,kzpial.
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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 ttnwhvbl8 - ii t u;0q,jnl(3k6he structure of RNA and D 8h0l-jvl;qn(bu36ti ,ktni wNA
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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. Outline .0sluc5pjtsve 3+wd ku1;tt/how it is possible for these universal DNA molecules to store vari scl wu5+u3 .v/0ttjde1tp;sked 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 ak:5 /ood3 iqyused viral bacteriophages to demonstrate that DNA, not protein, is the genetic material. This investigation used radioactive phosphorus to labdy o ok:a/35iqel 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 strd;u, 6i)j h1cbywdiw1g+x 7(cd a gji)uctural unit of a chromosome. Describe the structure of a gcd)i1gwi (xa ,bjw ;1 dc7yd+j )i6hunucleosome.
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总分:10分 及格:6分 时间:不限时
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