The genetic code and protein synthesis

The genetic code and protein synthesis Quiz

Spec 2.6–8 · Edexcel A-Level Biology A: Quiz

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5 questions, one answer each

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  1. 1. A template strand reads TAC. What is the mRNA codon?

    • A. ATG
    • B. AUG
    • C. UAC
    • D. TAC

  2. 2. Which statement describes a degenerate code?

    • A. One codon codes for several amino acids
    • B. Each base is in two codons
    • C. Most amino acids have more than one codon
    • D. Codons contain four bases

  3. 3. Which anticodon pairs with the mRNA codon GCU?

    • A. CGA
    • B. GCU
    • C. CGT
    • D. UGC

  4. 4. What happens when a ribosome reaches a stop codon?

    • A. A tRNA adds a final amino acid
    • B. The polypeptide is released
    • C. The mRNA is copied again
    • D. The start codon is read again

  5. 5. Where does translation take place?

    • A. On a ribosome
    • B. In a nuclear pore
    • C. On the template strand
    • D. On RNA polymerase

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