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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, virie( l r.5j 4x-n-p w4ttqouft/uses are not considered to be t. 4ji/rn uoxqfw5-4 tel-t (pliving
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 descriptiz92 b zato,rzdp/h 7jbh r2:g1on 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 th )bjj7 cat7xfxj zh+oq, ;q3+je 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 shown beve.eg wrde* p oj(f/60r te9(glow. (5 marks) gee e9r 60tegovjf*/d(( rp.w
(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 e 4w6cm7lb-(uu so iy3b od/o*DNA 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 impomgp3:auc ki95 rtant in the replication of DNA mu:5ika3c pg9 as the 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 tableq , ((m0rcaclf to outline the differences between the structure of RNA and DNf a( c0lq,mcr(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 matemevlwdr1 ly 7 )kj *n8a)p55azhrb;g5rial of all living organisms. Outline how it is possible for these universal DNA molecules to st 5d1j5 gh5 e)mrpkywlbl*a8r v7az; n)ore 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 used viral bacteiut3io gy iopwb l(*d oz04wn(71b1/n riophages to demonstrate that DNA, not protein, is the genetic material. Tou*(4p1 1dt7z0ibiyowin n3 g(l/wobhis 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 chromosonh) .n 1h5a1vlgrb/csme. Describe the structure of a nucleo vr/5 1c gl.ha1)sbnnhsome.
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