Knowledge Check: Chapters 7 & 8

  • Question 1

    1 out of 1 points

    Which enzyme links nucleotides into a new stand of DNA?​
    Selected Answer:

    Correctc.

    ​DNA polymerase
    Correct Answer:

    Correctc.

  • Question 2

    1 out of 1 points

    A eukaryotic chromosome consists of _____.​
    Selected Answer:

    Correctc.

    ​DNA and proteins
    Correct Answer:

    Correctc.

  • Question 3

    1 out of 1 points

    The information from messenger RNA is used to create polypeptide sequences during the process of _____.​
    Selected Answer:

    Correctd.

    ​translation
    Correct Answer:

    Correctd.

  • Question 4

    1 out of 1 points

    Short, single strands of nucleotides that serve as attachment points for DNA polymerase are called _____.
    Selected Answer:

    Correcta.

    primers
    Correct Answer:

    Correcta.

  • Question 5

    1 out of 1 points

    If a DNA molecule was a spiral staircase, what would the steps of the staircase be?​
    Selected Answer:

    Correctc.

    ​base pairs
    Correct Answer:

    Correctc.

  • Question 6

    1 out of 1 points

    Transcription factors bind to _____.
    Selected Answer:

    Correcta.

    promoters
    Correct Answer:

    Correcta.

  • Question 7

    1 out of 1 points

    DNA molecules contain protein-coding sequences called _____.
    Selected Answer:

    Correctd.

    genes
    Correct Answer:

    Correctd.

  • Question 8

    1 out of 1 points

    Once the amino acid on the second tRNA bonds with the amino acid of the first tRNA, what happens to that first tRNA?
    Selected Answer:

    Correctd.

    It leaves the ribosome and may pick up another amino acid.
    Correct Answer:

    Correctd.

  • Question 9

    1 out of 1 points

    Translation stops when _____.
    Selected Answer:

    Correctc.

    one of the three stop codons is encountered
    Correct Answer:

    Correctc.

  • Question 10

    1 out of 1 points

    Body cells of human females contain _____.​
    Selected Answer:

    Correctb.

    ​two X chromosomes
    Correct Answer:

    Correctb.

  • Question 11

    1 out of 1 points

    Amino acids are carried to ribosomes by____ RNA.
    Selected Answer:

    Correctc.

    transfer
    Correct Answer:

    Correctc.

  • Question 12

    1 out of 1 points

    How many chromosomes are present in human somatic cells?​
    Selected Answer:

    Correctd.

    ​46
    Correct Answer:

    Correctd.

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