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QUESTION 6 These correct “overwinding” ahead of the replication forks by breaking, swiveling, and rejoining DNA strands. Helicases Single-strand...

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Biology

QUESTION 6

  1. These correct “overwinding” ahead of the replication forks bybreaking, swiveling, and rejoining DNA strands.

    Helicases

    Single-strand binding proteins

    Topoisomerase

    Telomerase

4 points   

QUESTION 7

  1. An organism that is heterozygous for two traits with thegenotype AaBb can form sperm with all of the following genotypesexcept:

    Aa

    AB

    aB

    ab

4 points   

QUESTION 8

  1. Which of the following prevents shortening of eukaryoticchromosomal ends?

    Helicases

    Telomerase

    Topoisomerase

    Beta-clamps

4 points   

QUESTION 9

  1. These are enzymes that untwist the double helix at thereplication forks of replicating DNA.

    Helicases

    Stingle-strand binding proteins

    Topoisomerase

    Telomerase

4 points   

QUESTION 10

  1. Where does translation occur in eukaryotic cells?

    in the nucleus

    in the cytoplasm

    at the golgi apparatus

    at the plasma membrane

Answer & Explanation Solved by verified expert
4.3 Ratings (790 Votes)
6 Topoisomerase A class of enzymes that alter the supercoiling of doublestranded DNA In supercoiling the DNA molecule coils up like a telephone cord which shortens the molecule The topoisomerases act by transiently cutting one or both strands of the DNATopoisomerase also plays an important maintenance role during DNA replication This enzyme prevents the DNA double helix ahead of the replication fork from getting too tightly wound as the DNA is opened up Bacterial    See Answer
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