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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: 匿名未登录  开始时间: 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 protee s k8t:zo-ke8d 7pmg.ome of a cell?

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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 difference1,7*ikx y;s4pqi rd mbs between monozygotic twq7; x im14krd ysbp*i,ins?
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 ca 56b5,nupymaells?

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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 altezh5 m )0zcx-/7( c(xgpyok wi.gws7zv red by epigenetic factors during the life of an organismh5cigszpx(g.7zz0o wvk7/ m(cyx)- w ?

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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 transcription of a gene.qsyot 4pr:0ni w+2-( cupof6j
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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 cahpg8kc5krtp fu.;)( ycle. Explain how methylation of the CDKN2A gene could enhance tum.p r()t5gu8ka;pkfh c our 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 ex zuk8l0 i4x q4/z g68d(gpka *hqickw.ample of an environmental or external factor affecting gene expressionq4*phi q(ix8g0acz k 48ukwzl.6gd /k.
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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 remd qt6y5xli5d 6oved during the production of gametes. Outline one consequence ofdx5ly56 6ti dq the removal of 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 tra-v7lu 8)rcgov26z jzjnscription of DNA is regulated in cells.
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