The enzyme which unwinds short stretches of DNA helix immediately ahead of a replication fork is:Select one:a. Helicaseb. DNA polymerasec. Topoisomerased. DNA Gyrase
Question
The enzyme which unwinds short stretches of DNA helix immediately ahead of a replication fork is:Select one:a. Helicaseb. DNA polymerasec. Topoisomerased. DNA Gyrase
Solution
The enzyme which unwinds short stretches of DNA helix immediately ahead of a replication fork is:
a. Helicase
Helicase is the enzyme responsible for separating the two DNA strands, allowing them to be copied during replication. It does this by breaking the hydrogen bonds between the base pairs, causing the DNA to 'unzip' and form a replication fork.
Similar Questions
Which of the following enzymes is responsible for unwinding the DNA double helix during replication?
Which of these types of enzymes is involved in setting up the replication fork?Group of answer choicesDNA glycosylaseDNA helicaseTelomerasePrimase
An enzyme that untwists the double helix of DNA at replication forks, separating the two strands and making them available as template strands.Group of answer choicesprimaseprimertopoisomerasesingle-strand binding protein (SSBP)Okazaki fragmenthelicaseNext
During bacterial DNA replication, the enzyme helicase functions to:Group of answer choicesunwind the parental double helix at the replication fork.join the 3’ end of one Okazaki fragment to the 5’ end of another Okazaki fragment.synthesize the small RNA molecule that are required for DNA replication.stabilize the unwound parental strands of DNA.
An enzyme that breaks, swivels, and rejoins the parental DNA ahead of the replication fork, relieving the strain caused by unwinding.Group of answer choicesprimasetopoisomerasesingle-strand binding protein (SSBP)helicasenucleosome
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