Protein Synthesis Quiz

A section of nucleic acid is shown below. The process represented in the diagram produces a molecule that is complementary to the template strand of DNA. What type of molecule is produced?

• new DNA

• polypeptide

• messenger RNA

• transfer RNA

Consider the following DNA sequence: AUGTTCGACTAC. How many codons would be formed from this sequence?

• 12

• 9

• 4

• 3

Transcribe AGG-CAC. Which of the following would be the correct complementary mRNA strand?

• AGG-CAC

• TCC-GTC

• UCC-GUG

• GAA-TUG

Translate the mRNA codons CUC-AGG. Which of the following would be the correct amino acid sequence for these codons?

• Leu-Arg

• Thr-Ser

• Leu-Lys

• Met-Val

Which enzyme helps to produce the mRNA strand by adding nucleotides, one at a time?

• amylase

• RNA polymerase

• helicase

• RNA nuclease

Which amino acid does the codon ACC code for?

• Thr

• Tyr

• Asp

• Stop

Replicate the following strand: GGC-ATA-CTC

• CCG-TAA-GAG

• GGC-ATA-CTC

• CCG-TAT-GAG

• CCG-UAU-GAG

Which is the correct sequence of the Central Dogma?

• DNA → RNA → protein

• protein → DNA → RNA

• RNA → protein → DNA

• protein → RNA → DNA

If a portion of mRNA reads GUC-AAC, what was the original DNA sequence that coded for it?

• CAG-TTG

• GUC-AAC

• GTC-AAC

• GUC-UUC

Which description explains the role of the tRNA in the process shown in this model?

• The model reads the message of nucleic acids, or nucleotides, and translates it into proteins, or amino acids.

• The model recognizes when mutations occur and fixes them on the DNA strand.

• The model signals the unzipping of the DNA strand prior to DNA replication.

• The model scans the developing peptide to make sure that the sequence of the amino acids matches the mRNA.