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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, 7e:kgugy)ij,4et p 8 eviruses are not conu4)ke:yg e g8p,t7i ejsidered 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 descriptiqu /nz.flk.* k / bancl1yj0b3on 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 m5 e7ma uvskyo ;a3m7wc;)z ;i:*tgq idescribes 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 parxngl l5 a;7c9sd8q0l.ff8mdnts of DNA on the diagram of DNA shown below. (5 marks) nd .n; 8lf8x m9 ds50gal7cflq
(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 meaning of complimenta38 tb8+ yxoxkd8nye sn1n1,h fvtp8xq7nb 0/ury 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 replicatio s*r6 teqkp;k-n of DNA as the geneticpqe ;s6*tk k-r 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 ofum810 0pwzuw.v 4lbdg RNA and1l mwdbgz0pwv . 8u04u 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 material of all livz4hg-62 dd.o/q brakxing organisms. Outline how it is possible for these universal DNA molecules to store varied genetic information both within specik zd-./rhaqd6go2xb 4 es 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 demonstrate th 6a w/c21w:q lacvhs2h .xz1tlat DNA, not protein, is the genetic material. This investigation used radioax v/hl1 cwa2h s1zcl: w.tq26active 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. Describe the st,/ a0aizo-wojructure of a nuwo,-oa iz0a j/cleosome.
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