protein-synthesis biochemistry question and answers -Page first

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Protein Synthesis problems

1. The peptidyl transferase reaction occurs
Options
A. on the large subunit
B. on the small subunit
C. between the subunit
D. none of these

Correct Answer: on the large subunit

2. Which of the following amino acid starts all proteins synthesis?
Options
A. Glycine
B. Proline
C. Thymine
D. Methionine

Correct Answer: Methionine

3. Degenerated codon differs mostly in
Options
A. the identities of their second base
B. the identities of their third base
C. the wobble position
D. both (b) and (c)

Correct Answer: both (b) and (c)

4. The site of protein synthesis is
Options
A. Ribosome
B. Nucleus
C. Endoplasmic reticulum
D. Chromosome

Correct Answer: Ribosome

5. Which of the following has unusual bases?
Options
A. mRNA
B. tRNA
C. rRNA
D. hnRNA

Correct Answer: tRNA

6. How many bases of nucleic acid determine a single amino acid?
Options
A. Four
B. One
C. Two
D. Three

Correct Answer: Three

7. The ribosomes are composed of
Options
A. proteins
B. RNA
C. both (a) and (b)
D. lipids

Correct Answer: both (a) and (b)

8. The site on a bacterial chromosome that marks the termination point for chromosome replication is called
Options
A. ter
B. a stop codon.
C. a stem-loop
D. pau

Correct Answer: ter

9. Which of the following is not necessary for protein synthesis to occur, once transcription is completed?
Options
A. tRNA
B. Ribosomes
C. mRNA
D. DNA

Correct Answer: DNA

10. Which of the following is not a necessary component of translation?
Options
A. Anticodon
B. mRNA
C. Ligase
D. Amino acid

Correct Answer: Ligase

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