题目内容

The degeneracy of the genetic codon refers to:()

A. The triplet codon can lack a base
B. Some codons are applicable to more than one amino acid.
C. An amino acid has two or more codons.
D. There are many rare bases in codons.
E. Two or three amino acids with similar structure would share the some codon.

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Which of the following sequence needs to be identified in translation initiation process in prokaryotes:()

A. SD sequence
B. TATA box
CAAT box
D. promoter

Which kind of amino acid are carried in initiator tRNA in translation process of prokaryotes:()

A. Met
B. fMet
C. Gly
D. Try

Which of the following is NOT a stop condon:()

A. UAA
B. UAG
C. UGA
D. UUG

Which kind of chemical bond is responsible for the connection of amino acid to tRNA in translation process:()

A. Peptide bond
B. Phosphoester bond
C. Anhydride bond
D. Ester bond
E. Hydrogen bond