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习题练习:HL Topic D2.2 Gene expression

 作者: admin 发布日期: 2025-02-01 16:20   总分: 9分  得分: _____________

答题人: 游客未登录  开始时间: 25年02月01日 01:14  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) (组内1/4) 切至整卷模式 搜藏此题  
第 1 题组 (共 4 题 4 分)
  1. What is the proteome of a cellqb7 r:bm.y.fu?

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2#
 
单选题 ( 1.0 分) (组内2/4) 切至整卷模式 搜藏此题  
  2. Which of the following can cause phenotype differences between monozygotic t 4zx,w t2q4 ncawkb-m-wx-2w4k ,qz 4-mcawnt bins?
I. Exposure to different environmental influences.
II. The genotype of the monozygotic twin.
III. Somatic mutations.
IV. Different methylation patterns between the twins.

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3#
 
单选题 ( 1.0 分) (组内3/4) 切至整卷模式 搜藏此题  
  3. How is translation regulated in body cells? f tgl,qhi13d,

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4#
 
单选题 ( 1.0 分) (组内4/4) 切至整卷模式 搜藏此题  
  4. Which of the following are altered by epigenetic factob2 i.q 1at0wm yio qjm .hi744tw1:gyers during the life of an org4oiwme 4h q1ajq:12mt yt.gi 07i wby.anism?

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5#
 
问答题 ( 1.0 分) (组内1/4) 切至整卷模式 搜藏此题  
第 2 题组 (共 4 题 4 分) 当前第1/4题
题组内容描述:
5. A type of air pollution, PM 2.5 particulates, has been shown to cause methylation of the CDKN2A gene. This gene codes for the protein ‘p16’ which slows the cell cycle when it is produced, preventing cells from entering the S phase of interphase.
a. Outline how gene methylation affe7tepnui3i ,b 9pkq iuld,79 8ncts transcription of a gene.
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6#
 
问答题 ( 1.0 分) (组内2/4) 切至整卷模式 搜藏此题  
第 2 题组 (共 4 题 4 分) 当前第2/4题
题组内容描述:
5. A type of air pollution, PM 2.5 particulates, has been shown to cause methylation of the CDKN2A gene. This gene codes for the protein ‘p16’ which slows the cell cycle when it is produced, preventing cells from entering the S phase of interphase.
b. Tumours are formed when cells lose control of the cell cycle. Explain how me:klzm+gt t rq)2 9+phlthylation of the CDKN2A gene could enhgzhp+ mtlqtl9+ )2rk:ance tumour formation
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7#
 
问答题 ( 1.0 分) (组内3/4) 切至整卷模式 搜藏此题  
第 2 题组 (共 4 题 4 分) 当前第3/4题
题组内容描述:
5. A type of air pollution, PM 2.5 particulates, has been shown to cause methylation of the CDKN2A gene. This gene codes for the protein ‘p16’ which slows the cell cycle when it is produced, preventing cells from entering the S phase of interphase.
c. Give one further example of an environmental or external fach,r1 l- xpa2k ptha7w(tor affecting gene expression.l1 hak hppa2,w7xrt -(
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8#
 
问答题 ( 1.0 分) (组内4/4) 切至整卷模式 搜藏此题  
第 2 题组 (共 4 题 4 分) 当前第4/4题
题组内容描述:
5. A type of air pollution, PM 2.5 particulates, has been shown to cause methylation of the CDKN2A gene. This gene codes for the protein ‘p16’ which slows the cell cycle when it is produced, preventing cells from entering the S phase of interphase.
d. Most epigenetic tags are removed during the productieuhre :k z 7p +q.ors9e 3z-lgja-:ig2on of gametes. Outline one consequence of the removal of epigenetic 327zsehe9- -: og kp+rzaji rq:lgeu.tags in gametes.
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9#
 
问答题 ( 1.0 分) (组内1/1) 切至整卷模式 搜藏此题  
第 3 题组 (共 1 题 1 分)
6. Outline the ways tha w4oi42h*+*em wh+4vze t bltet transcription of DNA is regulated in cells.
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