Translation and Regulation
Which of the following defines an open reading frame (ORF)?

A sequence of genome in bacteriophage
A plasmid vector used in genome sequencing
A possible gene predicted by DNA sequencing
The sequence of a complete genome

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Translation and Regulation
The role of molecular chaperones is to

degrade newly synthesized polypeptides that contain inaccurate sequences
facilitate binding of ribosomes to mRNA
aid a newly synthesized polypeptide in folding to its proper shape
facilitate binding of RNA polymerase to DNA

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Translation and Regulation
The ribosome binding site

is more likely to be associated with an operon than with a gene encoding a single protein
is located upstream of the promoter sequence
is located immediately upstream of the start codon
forms a stem-loop structure in the RNA

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