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What is the role of helicase in DNA replication? (2022)

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Question: What is the role of helicase in DNA replication? (2022)

Options:

  1. To synthesize RNA
  2. To unwind the DNA double helix
  3. To join Okazaki fragments
  4. To add nucleotides

Correct Answer: To unwind the DNA double helix

Exam Year: 2022

Solution: 

Helicase unwinds the DNA double helix during DNA replication.

What is the role of helicase in DNA replication? (2022)

Practice Questions

Q1
What is the role of helicase in DNA replication? (2022)
  1. To synthesize RNA
  2. To unwind the DNA double helix
  3. To join Okazaki fragments
  4. To add nucleotides

Questions & Step-by-Step Solutions

What is the role of helicase in DNA replication? (2022)
  • Step 1: DNA is made up of two strands that are twisted together, forming a double helix.
  • Step 2: Before DNA can be copied, these two strands need to be separated.
  • Step 3: Helicase is an enzyme that helps to unwind and separate the two strands of the DNA double helix.
  • Step 4: Once the strands are separated, other enzymes can come in to copy each strand to make new DNA.
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