Exam 22: Protein Synthesis

Arrange the events listed below in order according to the signal hypothesis: I. Signal sequence binds to SRP II. Translation stops III. Translation starts IV. Ribophorins anchor complex V. SRP dissociates;GTP hydrolyzed VI. SRP-signal complex binds to docking protein

Which is true about proofreading activity during the synthesis of aminoacyl-tRNAs?

Which of the following is mismatched?

Different tRNA molecules that bind the same amino acid are called ________ tRNA molecules.

What is the 5' → 3' anticodon for an amino acid with the codon CAG?

The net effect of all amino acid tRNA synthetases binding to a tRNA is to position the ________ of tRNA in the active site.

Unlike bacterial mRNA,eukaryotic mRNA must undergo ________ before it may be used for translation.

Chaperone proteins help to fold newly translated proteins into correct configurations.

The initiation codon ________.

Translation at the ribosomes of eukaryotes is usually a much faster process than DNA replication.

The anticodon is found on the variable arm of tRNA.

An elongation factor EF-Ts serves mainly to

Ribosomal protein synthesis is controlled by inhibitor proteins,the genes of which are located on the ribosomal protein operon,and which bind to ________ when ribosome assembly slows and bind to ________ when ribosome assembly is proceeding at a steady rate.

If the anticodon on tRNA is GTC (tyrosine)(5' → 3'),the sequence of the 5' → 3' template strand of the gene in DNA that specifies this amino acid is

The deaminoacylated tRNA leaves the ribosome as the growing polypeptide passes through the tunnel of the large ribosomal subunit from the ________.

The first amino acid incorporated into proteins ________.

The correct order for the formation of the prokaryotic 70S initiation complex is:

Different codons that specify the same amino acid are called ________ codons.

The EF-Tu-GTP complex recognizes fMet-tRNAfmet in bacteria but not in eukaryotic cells.