During translation, the codon in mRNA is actually “read” by a. the A site in the ribosome. b. the P site in the ribosome. c. the anticodon in a tRNA. d. the anticodon in an amino acid.

Which of the following is true about the three major classes of RNAs in the cell: mRNAs, tRNAs, and rRNAs? A. mRNAs encode polypeptide chains. B. tRNAs are structural components of the ribosome. C. rRNAs are adapter molecules that translate the information on an mRNA into a polypeptide sequence. D. mRNAs can also encode tRNAs and rRNAs.

tRNAs contain the ________ that interacts with mRNA.   a. docking bay   b. anticodon   c. codon

What is the purpose of a Poly-A tail being added to mRNA?   a.   To attach to viral sequences   b.   To weigh down mRNA   c.   To terminate translation   d.   To change the chemical structure   e.   Unknown

A small section of bacterial mRNA has the following nucleotide sequence:GAC CCG AUG AACThe tRNA anticodons for the mRNA sequence shown above is a. CTG GGC TAC TTG b. CUG GGC UAC UUG c. GAC CCG ATG AAC d. CUG GGC TAC UUC

All of the following regarding ribosomes are true EXCEPT: A. Ribosomes are comprised of protein and RNA. B. Ribosomes coordinate with initiation and elongation factors to regulate translation. C. Ribosomes bind transcripts in their promoters. D. Prokaryotic ribosomes are comprised of a large and a small subunit. E. Ribosomes in eukaryotic cells bind to complete transcripts.

Of the following, which is a modification made to the pre-mRNA of eukaryotes before translation?   a. The 5’ end receives a poly-A tail   b. All of the above   c. The 3’ end receives a cap   d. Introns are cut out and exons are spliced together