Respuesta :

mariacaterinat
The enzyme that untwists and unzips the double helix of DNA at the replication forks is called helicase, A protein that functions in DNA replication, helping to relieve strain in the double helix ahead of the replication fork.

The enzyme responsible for unzipping the DNA double helix is DNA helicase.

What is DNA?

  • It stands for deoxyribonucleic acid and is a genetic material.
  • It is a long chain of polynucleotide.
  • Each nucleotide consists of: deoxyribose sugar (carbon-containing compound), phosphate group and nitrogenous bases (nitrogen-containing compound).
  • Nitrogenous bases is of two types: Purines (consisting Adenine and Guanine) and Pyrimidine (consisting Cytosine and Thymine).
  • It is a double helical structure in which Adenine pairs with Thymine by forming two hydrogen bonds whereas Guanine pairs with Cytosine by forming three hydrogen bonds.
  • In order to start replication this DNA helix should be unwind. This is done with the help of enzyme DNA helicase.

What is DNA helicase?

  • "It is a class of enzymes that catalyze the separation of duplex nucleic acids into single strands in an ATP-dependent reaction."

Hence, the enzyme used for unzipping DNA double helix is DNA helicase.

To know more about DNA helicase here

https://brainly.com/question/13543444

#SPJ3

Otras preguntas

RELAXING NOICE
Relax