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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 celz+:va1 ab/9omv nx7zll?

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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 phenotwss pv3lo lu*p32qm6.k /mk* pype differences between monozygotic twimmp*s l ksu*/.3l6 2pkwpq3o vns?
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?4 g14u z/k/jc7jxdzg ho33tz y

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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 v,p w.+;.o qlt ijh8 :hdlo+dzby epigenetic factors during the life of an organism?.:l l dh,t.z dhov;q8o+ij+w p

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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 affects transcr.g ch:2fj.wuspv 4e j6iption 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 co6stmu*w;dhh9psu.sz6 y 1j ;yntrol of the cell cycle. Explain how methylation of the CDKN2A gene could enhance tumour forma*sutp us s6y1 ;wyz;h9j6hdm.tion
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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 an3q,gd wdr c x.lznj5 :uq0hr fj+is1.4 environmental or external factor affecting gen,1l3ur+4 ixdzhg5qs c.nqd0 .r j:fwje expression.
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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 th ww5q 5qc+g5mfe production of gametes. Outline one consequence of the removal ofqmcg 555fw qw+ epigenetic 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 that transcription of DNA is regulated in cwp7 g1 2;k)w .sxoy jzg,-pvhrells.
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