The ribosome is mainly composed of ribosomal RNAs and proteins. The main function of protein is to catalyze the formation of peptide bonds between amino acids while rRNA to provide recognition site of tRNA.()
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If a mRNA is 1800bp, the polypeptide chain translated by this mRNA would contain 600 amino acids.()
The wobble of the genetic code refer to:()
A. One amino acid is determined by two or more codons.
B. The same set of genetic codes is used from lower organisms to human beings.
Codons in mRNA should be matched perfectly with anti-codon in tRNA
D. Mitochondrial translation system has its separate codons.
E. The third base of one codon in mRNA is not strictly paired with the first base of the anticodon in tRNA.
The enzyme that responsible for the activation of amino acid is:() ( )
Aminoacyl-tRNA transferase ( )
B. Aminoacyl-tRNA synthetase
C. Aminopeptidase
D. Aminotransferase
E. Carboxypeptidase
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.
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