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习题练习：SL/HL Topic D1.2 Protein synthesis
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 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: 25年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 bre.9k( ei1z sm,yt mcl1saking of the hydrogen bonds in DNA to allow,ty9 z sm1km.i 1l(ces transcription to occur?

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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 in the same a5d)7mbrchl.mq ;w -corganism 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 proteinsz un2vln*1q -n/xj5vgs1bq7g manufactured by the cell?

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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 folloc7 j3af0crm 4kwing is correct in regard to the genetic 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 cfn-ym ,y5mq,t x1ozq .0 0,onbubn4r oan be inserted into bacteria. The bacteria will then manufaqqou1zb,ry y o5nb004n, m nf xotm,-.cture the protein, insulin. Why can bacteria utilise a human gene to manufacture 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 sequena5nmfk bg2 3(sce 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 change in the ptt cc+js87c hbdt*/5;6eixtwolypeptide sequence of a protein but b;8 *7xt6i +tectw5hsd/ jt cca point mutation of CAU to CAC would not cause any change in the polypeptide 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 antic,dr1w* vrlm+dpr;j 8n odon of the transfer RNA molecule whicpjr ,mr *lv;drdw1+n8h 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 r6s 9z8/nky4wl. l0 w3phdxdxsequence that would be translated from an mRNA molecule with a base sequence of AUGAGGACUGCUUGA. Use the 3-letter codes in the t 0 pl3dlrwxx869.4dkysn/zh wable
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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 base pairing is essential in converting a base siqbot-02 s -ruequence in DNA to a tb o-u2srq0 i-polypeptide sequence in a 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 polypeptiuqs-0ek7+f q qde sequence from a sequence of bases in the mRNA molecule. Explain how a polypeptide chain elongates as 7kqsqu0-e fq +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 a 5’ 3gkrtfx 8 *,2)ph0d sj 6mwmujrza+*:v’ direction. Explain why this is essential in the case of translationa z+trmj8 rdvp*x2,:whs)k mj*6f0ug .
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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 mRNA is differenc w7 w-0urwu-qt to the mRNA produced by tr-rcwq7 uu0w -wanslation.
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