The genetic code and protein synthesis

The genetic code and protein synthesis Quiz

Spec 2.11–13 · Edexcel International A Level Biology: Quiz

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5 questions, one answer each

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  1. 1. How many bases code for one amino acid?

    • A. 1
    • B. 2
    • C. 3
    • D. 4

  2. 2. A template strand has the sequence TACGGA. What is the mRNA?

    • A. AUGCCU
    • B. ATGCCT
    • C. UACGGA
    • D. AUGCCA

  3. 3. What does 'degenerate' mean in the genetic code?

    • A. Each codon codes for several amino acids
    • B. The code overlaps
    • C. The code can be damaged
    • D. More than one codon can code for the same amino acid

  4. 4. Which tRNA anticodon pairs with the codon GGU?

    • A. GGU
    • B. CCA
    • C. CCT
    • D. UUA

  5. 5. A polypeptide has 40 amino acids. How many bases in the mRNA are read, including one stop codon?

    • A. 120
    • B. 121
    • C. 123
    • D. 126

Quiz