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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: 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 theq7le e3o;w0*/y mw ggaqh(lt7 hydrogen bonds in DNA to allow transcription to occur?lqg/(ea3;7te7hw0q lo*g ym w

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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 produc57op rg tv5de:e 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 n4r0w 5xjr0 m/ epx2rc-5yje kcell?

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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 genetic code (51ozih+e cfx?

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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 insulir68e 1v 0suzlfyv; u1in gene can be inserted into bacteria. The bacteria will then manufacture the protein, insulin. Why ca1u61 ryvsi; ezf 8uv0ln 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 shfnlwq52c(xd qpe(x xe*a tts ;h.s,)*own 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 fhi7m 5ef *syr4gp .g0kk 2tz kb +z304suskv+in the polypeptide sequence of a protein but a point mutation of CAU to CAC would not cause any 3ss4v fk 0y+k4 5g*+ tgh .sur2kfizz b0km7pechange 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 anticodon+qqx6gi(4o xex;*q gb q(dwbo6;5 e yu of the transfer RNA molecule which carries the amino acid tryptophan (gbqy+q; ;4bxi 5 w6goexexoq6udq(*(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 d/ja2 d( kcf-) s,rqxff(wrux -i sq3;that would be translated from an mRNA molecule with a base sequence of AUGAGGACUGCUUGA. Use the 3-letter codes in t)x-qqa3ffu d,ird(skws/-x 2; (f cjrhe 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 complimeno)/ po 8b;zi wam2kai4tary base pairing is essential in converting a base sequence in DNA to a polypeptide se k2)ioiwbm; p48a/za oquence 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 se 1jtlhxgv tx+hs09p8-0 o2)c rbpmae*quence from a sequence of bases in the mRNA molecule. Explain how hm89pp) c o2s*e j+ tl0 ax1thgbr0x-va 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 transcr 4w4pbff586y0lnb e dwiption both occur unidirectionally in a 5’ 3’ direction. Explain why this is essential in the casbdff6nw4 ye58b4w lp0 e 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 differenzx ;csvj2nwokvsx)r274, bp)4aqq k2t to the mRNA produced by trb2a ;rn z2vow)c j qk74kx2ss)p,q4xvanslation.
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