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Which enzyme is responsible for the unwinding of DNA during replication?

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Question: Which enzyme is responsible for the unwinding of DNA during replication?

Options:

  1. DNA polymerase
  2. Helicase
  3. Ligase
  4. Primase

Correct Answer: Helicase

Solution: 

Helicase is the enzyme that unwinds the DNA double helix, allowing replication to occur.

Which enzyme is responsible for the unwinding of DNA during replication?

Practice Questions

Q1
Which enzyme is responsible for the unwinding of DNA during replication?
  1. DNA polymerase
  2. Helicase
  3. Ligase
  4. Primase

Questions & Step-by-Step Solutions

Which enzyme is responsible for the unwinding of DNA during replication?
  • Step 1: Understand that DNA is structured as a double helix, which means it has two strands twisted around each other.
  • Step 2: During DNA replication, these two strands need to be separated so that each can be copied.
  • Step 3: The enzyme that performs this separation is called helicase.
  • Step 4: Helicase unwinds the DNA double helix, creating two single strands.
  • Step 5: Once the strands are separated, DNA replication can proceed.
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