Concept explainers
Number the following steps of protein synthesis in order in which they occur, starting with 1 and ending with 9.
a. ____ the stop codon is reached, and the polypeptide is released
b.____ the small ribosomal subunit finds the start codon, and the large ribosomal subunit joins.
c.____ the end of the gene is reached, and the pre-mRNA is released and then edited.
d. ____ The transcription factor bonds the promoter.
e. ____ the protein is folded and modified to become functional.
f. ____ RNA polymerase builds the mRNA transcript.
g. ____ mRNA and initiator tRNA bind the small ribosomal subunit.
h. ____ new tRNAs are brought into the A site successively, and the peptide chain of the tRNA in the P site is joined to the amino acid of the tRNA in the A site.
i. ____ mRNA exits the nucleus via a nuclear pore.
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