Which of these types of enzymes is involved in setting up the replication fork?Group of answer choicesDNA glycosylaseDNA helicaseTelomerasePrimase
Question
Which of these types of enzymes is involved in setting up the replication fork?
- DNA glycosylase
- DNA helicase
- Telomerase
- Primase
Solution
The enzyme involved in setting up the replication fork is DNA helicase. Here are the steps explaining why:
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DNA replication begins at specific sites on the DNA molecule called origins of replication.
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The enzyme DNA helicase binds to the origin of replication and separates the two strands of the DNA molecule, forming a structure known as the replication fork. This is because the two strands of the DNA molecule are antiparallel, meaning they run in opposite directions, and need to be separated for replication to occur.
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DNA helicase does this by breaking the hydrogen bonds between the base pairs of the DNA molecule, which "unzips" the DNA double helix.
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Once the DNA strands are separated, other
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