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Home Biochemistry Protein Synthesis Comments

  • Question
  • 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 


  • Protein Synthesis problems


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    • 1. Which of the following is the smallest of the RNAs?

    • Options
    • A. Messenger RNA
    • B. Transfer RNAs
    • C. Ribosomal RNAs
    • D. All of these
    • Discuss
    • 2. What is the average size (in bp) of a mature t-RNA?

    • Options
    • A. 80 bp
    • B. 100 bp
    • C. 120 bp
    • D. 140 bp
    • Discuss
    • 3. The mRNA from which of the following would contain a poly-A tail?

    • Options
    • A. A restriction endonuclease from E. coli
    • B. Bacterial alpha-amylase
    • C. Human insulin
    • D. Bacteriophage DNA ligase
    • Discuss
    • 4. In RNA, uracil pairs with

    • Options
    • A. adenine
    • B. cytosine
    • C. thymine
    • D. guanine
    • Discuss
    • 5. During RNA synthesis, the DNA template sequence 5'Tp Ap Gp Cp 3' Would be transcribed to produce which of the following RNA sequence?

    • Options
    • A. 5'-Ap Tp Cp Gp-3'
    • B. 5'-Gp Cp Up Ap-3'
    • C. 5'-Gp Cp Tp Ap-3'
    • D. 5'-Ap Up Cp Gp-3'
    • Discuss
    • 6. Which of the following amino acid starts all proteins synthesis?

    • Options
    • A. Glycine
    • B. Proline
    • C. Thymine
    • D. Methionine
    • Discuss
    • 7. 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)
    • Discuss
    • 8. The site of protein synthesis is

    • Options
    • A. Ribosome
    • B. Nucleus
    • C. Endoplasmic reticulum
    • D. Chromosome
    • Discuss
    • 9. Which of the following has unusual bases?

    • Options
    • A. mRNA
    • B. tRNA
    • C. rRNA
    • D. hnRNA
    • Discuss
    • 10. How many bases of nucleic acid determine a single amino acid?

    • Options
    • A. Four
    • B. One
    • C. Two
    • D. Three
    • Discuss


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