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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 characteristic2idl c bzf2:j y +gc11u2g,9j;wnfczzs of living things, viruses are not considered to be liz 1z nc22wjgcb9:d;izc 1ffyu2 gl+, jving
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 gf97thc(/ 9 vi gtqedmt;om*x8d 1wl0accurate 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 descrz e2w 1mglv*uds ;7l/cibes 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 parts of DNA on the diagram of DNA show).xd/ds 9okgk n below. (5 marks) /g ds9. x)kkdo
(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 disw;p u6he7gd9: ,xzc sagram, 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 replication of DNAv y9jd/ia7a q8i9 +kjf ak7yq/ija89 ia+dfjv9 s 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 table to outline the differences between the structlp/, :yq2nvb(sfhkbs+ s8 )gqure of RNA and ps2,hbv:)qysbsnf +8q/(kg l 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 living organisms. Outline how it is9u2mbrny pk g5 )kjv)3 possible for these universal DNA molecules to store varied genetic informatio jm)pg 9nukbv25y )r3kn 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 bacteriophages to demonstrate that DNA, b)5yh4obgu ;b gm5hv: not protein, is the genetic material. This investigati) g5m4;5 vyohuhgb:bb on 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 structuvpt / k8d ztwdt50n::gral unit of a chromosome. Describe the structure of a nudd: ktpw n v58t:g0zt/cleosome.
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