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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 hav ,x v pba,g5as3ow:tv7e all the characteristics of living things, viruses are not cspx,ot5 ,7v vw: a3abgonsidered 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 accurate description ofhsf+ rsno1: n. of),:tqx;b hkm)2f ue 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 describh2q2o)(a 7g+ uzli ygges 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 part4o p(me/cyor0 ( mb3ftxo.6jl s of DNA on the diagram of DNA shown below. (5 marks) c43 fome0lr ( (ymp 6btox/o.j
(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 mea;ea n fguu;t4,ning 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 compl n:so,(groq ,jimentary base pairing is important in the replication of DNA as thgno(,s: ,q rjoe genetic 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 tt8ld3fal +f 52zw-j8*px3jxwt+ ok bvhe structure of RNA and b+potv8833l2x-xf 5 jlt+wfjak *d zw 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 maten 1mv ()on-q8edftz;j rial of all living organisms. Outline how it is possible for these universal DNA molecules to store varied genetic information both within spectj o(dq8em)n ;znv1 f-ies 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 demonstv* v,0,hpejx9r acq8 lrate that DNA, not protein, is the genetic material. This investigatjq09*aelvp,c r h vx,8ion 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. Descwikpf 52y(6.yqo - vzrribe the structure of a nucleosome5vy(.yk- wr62 poiqf z.
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总分:10分 及格:6分 时间:不限时
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