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.
Question
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.
Solution
During bacterial DNA replication, the enzyme helicase functions to unwind the parental double helix at the replication fork.
Here's a step-by-step explanation:
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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 replication fork.
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As DNA helicase moves along the DNA molecule, it continues to separate the two strands, effectively unwinding the parental double helix.
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This unwinding allows other enzymes involved in DNA replication, such as DNA polymerase, to access the single-stranded DNA and begin the process of synthesizing a new strand.
So, the primary role of DNA helicase in bacterial DNA replication is to unwind the parental double helix at the replication fork.
Similar Questions
What is the main function of DNA helicase in DNA replication?Fusing DNA fragments togetherAdding complementary DNA bases to the newly forming DNA strandProofreading the DNA moleculeUnzipping the DNA double helix
Match the enzymes to their role in the DNA replication process.RNA primaseligasehelicasepolymerasetopoisomeraseunwinds the DNA moleculesynthesizes the complementary daughter strandssynthesizes RNA primer at the initiation pointcreates nicks ahead of the replication fork to relieve tension from unwindingjoins the Okazaki fragments togetherReset Next
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
Which reaction in DNA replication is catalysed by DNA ligase?Group of answer choicesFormation of a phosphodiester linkage between two Okazaki fragmentsProof reading the template strand for errorsBase pairing of the template to the newly synthesised strandAddition of nucleotides to the lagging strand
Which of the following enzymes is responsible for unwinding the DNA double helix during replication?
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