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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 responsi:xfpy ueny504t p pl(*ble for the breaking of the hydrogen bonds in DNA to allow transcriptiyxu0t(45:nypep*f l pon 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 org5+,dc trpdh2a anism 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 cell-;(tsa 6 s c zapp8urh;s5zwok-b. ,vg?

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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 regary.3 l yd:gw /;fqlne*gd 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 ; 8uftutvye+:gene can be inserted into bacteria. The bacteria w+ut8 u ety;vf:ill then manufacture 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 bswtad.4 c26hnkl p9 ,l/y 9fhtase sequence 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 c3ez p h*5 na/lir*g7xjhange in the polypeptide sequence of a protein but a point mutation of CAU to CAC would not cause any change in the polypeptide sequencexrjgi ze3/l 5a* 7hn*p.
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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 Rkqrp/y 1(6- egungc 9 v7smor)NA molecule which carries the amino acid tryptophan (Trp)?vq- r/ g)rpsu97mncg6 eo( k1y
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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 mRNA moleculy7gkcasc259 4yx ehzq6ear c,2k5)b le with a base s2r qlych,gzac6x7ek a by425 e)59k scequence of AUGAGGACUGCUUGA. 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 base pairing is esse *)oxiz(u rai;ntial in converting a base sequence in DNA to a polz (;*iiorx au)ypeptide 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 polypeptide sequence from a u+pevv3 k/ muwu 7*r3asequence of bases in the mRNA molecule. Explain how a polypeptide chain elongates as the ribosome moves along an mw3ue 7mavu3/v +p* rkuRNA 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 tr38wl y/ jhbvgn7j /+k(epp r*aanscription both occur unidirectionally in a 5’ 3’ direction. Explain why this is essential in the case of translationa py gblp3vkw(n*jr7//je+h8.
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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 different to thewr9xt ownefx- yjk m(m* 49lc)h500rz mRNA produced by trjn*zwte590(r9cm mr0 )4 wy-lk fh oxxanslation.
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