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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: 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 responsifi*+ e b6bmb7y.rze 54qk4svfble for the breaking of the hydrogen bonds in DNA to allow transcription qv fei4b*bfm .b7ze4k+ 65ysr 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 prrdni9dd r i *ktu.5wqk906: vaoteins?

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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 m k3xdcoaso 4z8 .7/h/oblee,zb4t7j vanufactured 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 regard to the geneti/q jbs-b: (xydc 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 lc4 ;khudza+t np0hhz 5*80zlcan be inserted into bacteria. The bacteria will then manufacture the pr5 a*npll0 zhh;48+udk czht z0otein, 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 dva,si -ne)(fsequence 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 CAi6ngts8r +x/jm8 dfn+U to CAG would cause a change in the polypeptide sequenf srm8+xigt+8jnn6d / ce of a protein but a 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 anticodon of the x557kxv7vqv.x)4 qb5fjr h intransfer RNA molecule which carries the amino a7qk4iv vr qnj 5h5.x75b fx)xvcid 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 translated from an mRNArv-7zin8 :r ms1bqe (;uxj0jh molecule with a base sequence of AUGAGGACUGCUUGA. Use xh vuz- sqi; 1nm7jb8r (r0e:jthe 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 essential izy,)d 8*; *3otbdftl wzdt :lon converting a base sequence in DNA toz* t,ft8 3w ztly);b:*d doold a 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 polypeptide sequence from a sequence ofknd *;q,ki hl5 bases in the mRNA molecule. Explain how a polypeptide chain elongates *n ,hdkik ;ql5as 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 uni7 m2flqypzmjd )7il 6.ow04fn directionally in a 5’ 3’ direction. Explain why this is essential in the case of trans l0lzo)7imq7fm2j nw 4 p.6fydlation.
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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 the mRNA p4( xkaov:ka 9,/cou/ +4 5gy rwvyimcmroduced by translation4xy m:kymcu g4akcoor5vi,+/ a(wv/9.
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