Transcription & Translation Practice

Which of the following is the site for translation?

• ribosome

• nucleus

• Golgi bodies

• cytosol

Which of the following is the start codon?

• UGA

• AUG

• GUA

• GAU

What is the function of the P site in the large subunit?

• To phosphorylate the polypeptide

• To hold the growing polypeptide

• To assist with tertiary structure of the polypeptide

• To perform the base pairing for the polypeptide

Which of the following is the direction that mRNA is read?

• 3' to 5'

• 5' to 3'

• N terminus to C terminus

• C terminus to N terminus

Which of the following describes the difference between bound and free ribosomes?

• free ribosomes do not require ATP for dehydration reactions while bound ribosomes require ATP for dehydration reactions

• free ribosomes synthesize proteins for the cytosol while bound ribosomes synthesize proteins for the membrane/secretion

• free ribosomes are able to freely float between all parts of the cell while bound ribosomes are remain in the rough ER membrane

• free ribosomes move between the nucleus to the cytosol while bound ribosomes remain in the cytosol

Which of the following describes the function of the tRNA?

• tRNA has the codon required for translation

• tRNA allows for the translocation step

• tRNA has the RNA transcript for protein synthesis

• tRNA brings the amino acid to the ribosome

Which of the following describes the function of the mRNA?

• mRNA moves the ribosome to the appropriate location in the cell for synthesis

• mRNA has the anticodon to pair with tRNA for protein synthesis

• mRNA is responsible for being the transcript synthesized from the DNA

• mRNA will make more copies of itself to enhance the process of transcription

Which of the following describes the conversion factor between nucleic acids and proteins?

• 3 amino acids = 1 nucleotide

• 3 amino acids = 3 nucleotides

• 3 nucleotides = 1 amino acid

• 3 nucleotides = 3 amino acids

Which of the following is the enzyme used in the process of transcription?

• DNA polymerase

• RNA polymerase

• primase

• helicase

Which of the following describes the direction the template strand is read?

• 5' to 3'

• 3' to 5'

• N terminus to C terminus

• C terminus to N terminus