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
Question
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
Solution
The main function of DNA helicase in DNA replication is unzipping the DNA double helix. DNA helicase is an enzyme that is responsible for separating the two strands of DNA, breaking the hydrogen bonds between the base pairs. This creates a 'replication fork', a Y-shaped structure where new DNA strands are synthesized. This process is essential for DNA replication because it allows the replication machinery to access the DNA sequence and accurately copy it.
Similar Questions
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.
What is the function of DNA polymerase during DNA replication?
Fill in the Blank QuestionFill in the blank question.The enzyme DNA covalently links nucleotides to synthesize new DNA strands together during DNA replication.
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 following are enzymes required in DNA replication except A. DNA helicase B. Topoisomerase C. DNA primase D. DNA synthase
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