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Which enzyme is responsible for unwinding the DNA double helix during replicatio

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Question: Which enzyme is responsible for unwinding the DNA double helix during replication? (2021)

Options:

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

Correct Answer: Helicase

Exam Year: 2021

Solution: 

Helicase is the enzyme that unwinds the DNA double helix during the process of replication.

Which enzyme is responsible for unwinding the DNA double helix during replicatio

Practice Questions

Q1
Which enzyme is responsible for unwinding the DNA double helix during replication? (2021)
  1. DNA polymerase
  2. Helicase
  3. Ligase
  4. Primase

Questions & Step-by-Step Solutions

Which enzyme is responsible for unwinding the DNA double helix during replication? (2021)
  • Step 1: Understand that DNA is structured as a double helix, which means it has two strands twisted around each other.
  • Step 2: Know that during DNA replication, these two strands need to be separated so that they can be copied.
  • Step 3: Identify the enzyme that performs this separation. This enzyme is called helicase.
  • Step 4: Conclude that helicase unwinds the DNA double helix during the replication process.
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