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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 no3 nd7n ) i4gqxmf3o+-vbi, qqbt considered to be livinbdiqx+ ,) voqfqgn m 3-bi7n34g
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 accuratefwdl33,dzxgf/qky; ( 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 describes the backbone of DNA?y( nnce:d+6hg/1/4 slpzz )nrpm ty0b

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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 showl tcju(9ub* ko4( y5mhn1oi, an below. (5 marks)a9,l o 41(yjcm5ubou*i(nkt h
(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 diagr 8ynx iojjsp887tc;1ham, 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 important in the rebz( +7.gvve1f8wzf b-a oixh- plication of DNA as the genetbgbxa8vz (w.e +o -f1h-zi7fv ic 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 outhwn /+za1 iye5*-bcczline the differences between the structure of RNA and DNh-*a+yc i zz15n bce/wA
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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. O81nzqm(tm6 huutline how it is possible for these universal DNA qmu1zn6(hm t8 molecules 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 u29zu3g. 8ip(ov pejcsz29mwqsed viral bacteriophages to demonstrate that DNA, not protein, is the genetic material. This investigation used radiomwoe 23 j8iq g2ppczv(9u.sz9active 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. Descrin86,q0 ti hydzbe the structure of a nucleosome.z6 , inhyqtd08
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