The enzyme that responsible for the activation of amino acid is:() ( )
Aminoacyl-tRNA transferase ( )
B. Aminoacyl-tRNA synthetase
C. Aminopeptidase
D. Aminotransferase
E. Carboxypeptidase
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Which of the following statement about tRNA is NOT correct:()
Anticodon loop can be paired with the codon.
B. TψC loop recognizes and binds to the rRNA of ribosome.
C. Dihydrouracil loop or D loop binds to aminoacyl-tRNA synthetase.
D. 5'end of the acceptor arm / amino acid arm would interact with amino acid.
Here are some descriptions about ribosome, which one is NOT correct:()
A. Ribosome consists of rRNA and two kinds of proteins.
B. Each ribosome consists of one large subunit and a small subunit.
C. The function of the small subunit of ribosome is to combine with the template mRNA.
D. The transpeptidase activity of the large subunit can catalyze the formation of peptide bond.
E. The large subunit of ribosome contains more rRNAs than the small subunit.
There are several binding sites for protein synthesis in ribosome, so which is the binding site of elongated peptidyl -tRNA:()
A site
B. P site
C. E site
D. None of the above
Which of the following description about codon is NOT correct:()
A. There are 64 codons that can determine amino acids.
B. CTA cannot be a codon.
C. One amino acid can have one or more corresponding codons.
D. The same codon may responsible for the same amino acid in monkey cells and in human cells.
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