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14.2 Ribosomes and Protein Synthesis

Quiz by Zhao

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13 questions
Show answers
  • Q1

    Proteins are made by joining amino acids together into chains called ____________.

    polypeptides

    30s
  • Q2

    _________ different amino acids are commonly found in polypeptides.

    22

    19

    21

    20

    30s
  • Q3

    The genetic code is read ________ bases at a time.

    4

    1

    2

    3

    30s
  • Q4

    A codon consists of three consecutive bases that specify a single _____________ to be added to the polypeptide chain

    Users re-arrange answers into correct order
    Jumble
    30s
  • Q5

    Most amino acids can be specified by only  one codon.

    false
    true
    True or False
    30s
  • Q6

    The methionine codon AUG also serves as the initiation, or ___________ for protein synthesis.

    "start," codon

    30s
  • Q7

    ___________ use the sequence of codons in mRNA to assemble amino acids into polypeptide chains.

    Users re-arrange answers into correct order
    Jumble
    30s
  • Q8

    The decoding of an mRNA message into a protein is a process known as _________.

    Users re-arrange answers into correct order
    Jumble
    30s
  • Q9

    Each tRNA molecule carries just one kind of amino acid. In addition, each tRNA molecule has three unpaired bases that are together called an __________.

    anticodon

    30s
  • Q10

    If that next codon is UAG, a tRNA molecule with an_____ anticodon fits against the MRNA molecule held in the riboSome.

    Users enter free text
    Type an Answer
    30s
  • Q11

    The polypeptide chain continues to grow until the ribosome reaches a _____________ on the MRNA molecule. Then it releases both the newly synthesized polypeptide and the mRNA molecule.

    "stop" codon

    30s
  • Q12

    One of the most interesting discoveries of molecular biology is the near-universal nature of the ____________.

    genetic code

    30s
  • Q13

    ___________________ provides a way to understand the links between genes and the characteristics they influence.

    Molecular biology

    30s

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