题目内容

Which of the following is not needed in the elongation process of polypeptide chain:()

A. mRNA
B. formyl-methionyl-tRNA
C. transpeptidase
D. GTP
EF-Tu and EF-Ts

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In biosynthesis of protein, which of the following would be consumed besides ATP:()

A. CTP
B. UTP
C. GTP
D. ADP

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The initiation of translation contains three steps in prokaryotic cells, so which of the following step does not belong to these three steps:()

A. The small subunit of ribosome firstly recognizes and binds to the methylated 5' end of template mRNA.
B. The initiator aminoacyl-tRNA is inserted into P site of the ribosome small subunit to form the initiation complex.
C. Small subunit recognizes and binds to mRNA at ribosomal binding site (also known as SD sequence).
D. Large subunit binds to the initiation complex to form a complete ribosome.

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In prokaryotic cells, the first aminoacyl -tRNA in translation process is:()

A. fMet-tRNAfMet
B. Met-tRNAMet
C. Arg-tRNAArg
D. leu-tRNAleu
E. Asn-tRNAAsn

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tRNA molecule is composed of 74-95 bp which forms a clover structure. Besides the common AGCU, tRNA also contains some rare bases. The tertiary structure of tRNA is an inverted L.()

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Which of the following is not needed in the elongation process of polypeptide chain:()

A. mRNA B. formyl-methionyl-tRNA C. transpeptidase D. GTP EF-Tu and EF-Ts

In biosynthesis of protein, which of the following would be consumed besides ATP:()

The initiation of translation contains three steps in prokaryotic cells, so which of the following step does not belong to these three steps:()

In prokaryotic cells, the first aminoacyl -tRNA in translation process is:()

tRNA molecule is composed of 74-95 bp which forms a clover structure. Besides the common AGCU, tRNA also contains some rare bases. The tertiary structure of tRNA is an inverted L.()

A. mRNA
B. formyl-methionyl-tRNA
C. transpeptidase
D. GTP
EF-Tu and EF-Ts