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习题练习:SL/HL Topic D1.2 Protein synthesis



 作者: admin发布日期: 2025-02-01 17:28   总分: 13分  得分: _____________

答题人: 匿名未登录  开始时间: 02月01日 01:08  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) (组内1/5) 切至整卷模式 搜藏此题  
第 1 题组 (共 5 题 5 分)
  1. Which enzyme is responsible for the breakiu3lsk.d g i9.ing of the hydrogen bonds in DNA to allow transcription to oul.s3iki 9g d.ccur?

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2#
 
单选题 ( 1.0 分) (组内2/5) 切至整卷模式 搜藏此题  
  2. How can different tissues inrsh2 k54 u(zht utb4f1 the same organism produce different proteins?

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3#
 
单选题 ( 1.0 分) (组内3/5) 切至整卷模式 搜藏此题  
  3. How do cells control the proteins manufactured by the ce :s1(od7 xx,h8jb enatll?

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4#
 
单选题 ( 1.0 分) (组内4/5) 切至整卷模式 搜藏此题  
  4. Which of the following is correct in regard to the genetif 2m4rewx8d5azr i(t5 c code?

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5#
 
单选题 ( 1.0 分) (组内5/5) 切至整卷模式 搜藏此题  
  5. The human DNA base sequence for the insulin gene 4vgeh2h8gpu+ /rk+)jfx eb2v can be inserted into bacteria. The bacteria will then manufacture the protein, insulin. Why can bacteria utilise a human gene to manu+b)v/ e 2284jgehkphru +gxf vfacture insulin?

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6#
 
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:
6. The table shows the genetic code. It gives the base sequence and the amino acid (3-letter code) into which it is translated. Use the information in the image to answer the questions.
I. Which molecule’s base sbfki19e * l k3ey3de m0iz:q8nequence is shown in the table?
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7#
 
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:
6. The table shows the genetic code. It gives the base sequence and the amino acid (3-letter code) into which it is translated. Use the information in the image to answer the questions.
II. Explain why a point mutation of CAU to CAG would cause a cha0s ge4xtoud88nge in the polypeptide sequence of a protein but a point mutation of CAU to CAC would not cause any change in the polypd4e sugo08tx8eptide sequence.
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8#
 
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:
6. The table shows the genetic code. It gives the base sequence and the amino acid (3-letter code) into which it is translated. Use the information in the image to answer the questions.
III. Which bases would be present on the anticodon of the transfer RNA molecule . 0b d1xwz cw)sx*vcqx.x9 m0wwhichw c 0mxds) *v0xwqzw.cx b9x1. carries the amino acid tryptophan (Trp)?
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9#
 
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:
6. The table shows the genetic code. It gives the base sequence and the amino acid (3-letter code) into which it is translated. Use the information in the image to answer the questions.
IV. Deduce the amino acid sequence that would be translated from an ( tjld bw+f-m 53isvy;qdj: c.mRNA molecule with a base sequence of AUGAGGACUGCUUy+5 ;:s.dj3w- mtbivqd lcjf (GA. Use the 3-letter codes in the table
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10#
 
问答题 ( 1.0 分) (组内1/4) 切至整卷模式 搜藏此题  
第 3 题组 (共 4 题 4 分)
7. Discuss why complimentary 87b t.kzyu 50vg ur5pg6eyetm*7iiu;base pairing is essential in converting a base sequence in DNA to a polypeptide sequence in a uiv8; kupb . t6e5u57ytgreg 70ymzi *polypeptide chain.
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11#
 
问答题 ( 1.0 分) (组内2/4) 切至整卷模式 搜藏此题  
8. A ribosome produces a polypeptide sequence from a sequence of bases i ih: r1cqrm*2u(,p hohn the mRNA mol1*u2mr(cphh o:qri,h ecule. Explain how a polypeptide chain elongates as the ribosome moves along an mRNA molecule.
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12#
 
问答题 ( 1.0 分) (组内3/4) 切至整卷模式 搜藏此题  
9. Translation and transcription both occur unidirectionally in da:2-biqe:e.2mc8m ev6g n t8go:hf ca 5’ 3’ direction. Explain why this is essentialnh:.i26gbe 8 moqfv8 2m-ct :cgea de: in the case of translation.
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13#
 
问答题 ( 1.0 分) (组内4/4) 切至整卷模式 搜藏此题  
10. Describe 3 ways in which mature m8cni13 tni5 bcRNA is different to the mRNA produced by trans1bt5in3 nc8ic lation.
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