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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 thc 8flnk*pee v*2,2/h0s/+ ; iegnyv sgjxsy 8fe breaking of the hydrogen bonds in DNA to allow tra;ls/ +cp2 njigkyseg8xfy v/e8*fs20*,n hevnscription 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 skftgfyj uh4.y5 2, n(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 mankq5hu46h *u(nh404 fdb s9qqcou9 wqiufactured 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 c7fknhgk /1x9norrect 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 can be inserted into 93 *xguy p( 2phvpu3jhab6;il bacteria. The bacteria will then manufacture the protein, insulin. Why can bacteria utilise y vj3pp;lbg 6u39hxui*2ha( pa 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 sequm59dt4v y :ytdence 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 qli+ h 9(grx+spolypeptide sequence of a protein but a point mutation of CAU 9xg h(ir+lsq+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 anticodon of the t omvuyzp 6ip:(jx+2j)j l j/-yransfer RNA molecule which carries the amino ajp mo :-2iyjvyl)u z6xj(j/ +pcid 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 y rrn0 wk :fdmfx8j8-n49jv.:+bii ybtranslated from an mRNA molecule with a base sequence ofiyimb vknf8 rxd 9yr. 8:0:+wnjfj4 -b 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 complim);jbus fq-dp+entary base pairing is essential in converting a base sequence in DNA to a polypeptids +;-ubfqj )dpe 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 seque n0zazlpwg5u *af0b :(g/,enwnce from a sequence of bases in the mRNA molecule. Explain how a polypeptide chain elongates as the ribosome m:lna( *0 bg,fpwun5 / eg0wzazoves 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 tn-0e y*dc(lxg* nab (lranscription both occur unidirectionally in a 5’ 3’ direction. Explain why this is essential in the case of tra- *yxl (n0cg*ae(blndnslation.
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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 thu ntsb xw 4m,y;p/j9k:e mRNA produced by translation. 9jmsxnp4y;t k,/wu :b
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