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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 responsible for the breaking of the hydrogen bondud6xub ;.i+x b +6noaps in DNA to allow transcription to o6+ .+ 6ubuibx;doxp anccur?

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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 inh8 +3 mo 5pam spr38uzwlb(p(p the same organism 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 manufacturegtva5 y5ho3.zwqn )j,d 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 -s0..limoqcj is correct 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 in yc171fs 5atvz hyoxe0)b61il serted into bacteria. The bacteria will then manufacture the protein, insulin. Why can bacteria utilise a human gene to manufacture s7h5)l61 afyo bxct1iz0 ev1yinsulin?

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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 chaha28m/ o hk;v50aois 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 cauz* 8l;tid y:n;rkm mok1m,dv/ se a change in the polypeptide sequence of a protein but a point mutation of CAlkim k1t*r;m /domnzd,y: ;v 8U 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 b 3xdtt3zm b:2je present on the anticodon of the transfer RNA molecule which c zjd3 btxm2:t3arries 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 sequence that we/6r :d; 4tlutlq drx55/akniould be translated from an mRNA molecule with a base sequence of AUGA: 6 ei ukx/5q4 ;rlrt5tadndl/GGACUGCUUGA. 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 essenw/a i)n/ -keu ky-kk9ltial in converting a base sequence in DNA t -ke/akl)ui nk-w/y9k o 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 pob rh+iqvjawnf 0 9p 4o,sf(:n3lypeptide sequence from a sequence of bases in the mRNA molecule. Expbpaq w3(j9+ :hr nfv4i,0nsf olain how a 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 transcription both occur unidire+n2ljpi,v-v7t1sz h f ctionally in a 5’ 3’ direction. Explain why this is ess 7tvh1vn+ fi2lj-pz,sential 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 different to the mRNA pr ,3,qgpiyqrdco 4)t j,u-jg 8ooduced by transl,j jty q) - p,uir,o43do8cqggation.
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