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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: 游客未登录  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 breaking of the hydrogen bonds in DNAni, lw kr;8z7mrk); z)mhsa3g to allowrih)lmzg3zn7 ra; s, km)wk;8 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 organism produce different prot;;;w- vgzxfh( yihb wx-5k7.isj wh4neins?

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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 th)/nxg1xxm,vqszo(, w e proteins 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 following is correct in rb)mo zp l4 0.1t7rxwtgegard 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 can be inserted intodk1j*04hguy ao8yc :g bacteria. The bacteria will then manufacture the protein, insulin. oa 0*4ggyuc8jdh:ky1 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 sequence is shown in the table+(o15t dhuo sz?
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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 m q ib1e/+h/bhtk/5ib of CAU to CAG would cause a change in the polypeptide sequence of a protein but a point mutation of CAU to CAC would not / 5ti/ihbbq +me hbk1/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 pres70 qx efs:dqrd*7l4 nwent on the anticodon of the transfer RNA molecule whichsdqd w4 7xqr:nl fe*07 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 s6rmav9do0x 7dc; 66wb gb9 vs8djfz -fequence that would be translated from an mRNA molecule with a base sequence of AUGAGGACUG dfosmwx6 ;vbdg80b6dj9- 79a6fvzr cCUUGA. 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 bas*bg 4kgysjr:l+3 v a/le pairing is essential in converting a base sequence in DNA to a polypeptil: vbjgr+* l/ys 3gka4de 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 polypeptgfn. 6 0ayegq4ide sequence from a sequence of bases in the mRNA molecule. Explain how a poney g6 4qaf0.glypeptide 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 unidirec-jwyvd- ,.75r+hicpkc- c xmitionally in a 5’ 3’ directiopvkc i5w-jic7 h-d+x rm .,y-cn. Explain why this is essential 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 mRNA is diffn:qpispbpddrlr8)3obio7 + /, .g*dm erent to the mRNA produced by translatioq8opd rr3+b.:pbsdlg d,o7 in/ ) mip*n.
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