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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 o;*q0oagiawt uu8a5, all the characteristics of living things, viruses are not considered 5i,qu0u*oao a;a8wtg 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 of a nucleoticq; (sad5zv *rde?

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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 backb6hna8g igzm1. one 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 1. ljv0::iav;rnpf0z4 ;ti3kylfxwk/w u9zf diagram of DNA shown below. (5 marks) j 1: 0ikvr9i:al 4nv;z;/fp. xytflw0kw3fz u
(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 complimentary base f; y2bk: w/vcipairing.
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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 i4bcmjw+lj 9 8mx;; fmfs important in the replication of DNA as the genetic material.j+c94mf8 ;;fmjmwxlb
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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 outlig17) qjsg rt5t g-hqw rl3cl+bx+c(k( ne the differences between the structure of RNA ancchg r1gr+ qgtq ( (bx-lsl 3+k5tj)w7d 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 mater3.w1:vl.sq2. :wihvcxag (e*j r y clxial of all living organisms. Outline how it is possible for these universal DNA molecules to store varied genetic information both within species and 1c a*x2.wjvs:(.clxrqlhw v gei:3.ybetween 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 j8;6 bgt9xaf,vr9 q v;vo1xpybacteriophages to demonstrate that DNA, not protein, is the genetic materiv98qxv;9g,j t1v6 o pyx rfa;bal. This 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 w70p5bb 2ut dya structural unit of a chromosome. Describe the structure of a nucleosome0 ubwp25yd7tb.
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