Which molecule is responsible for the ‘unzipping’ of DNA during replication?

A. DNA ligase
B. Helicase
C. Topoisomerase
D. RNA polymerase

Answer: Helicase

Additional Information: Helicase unwinds and separates the two strands of DNA by breaking the hydrogen bonds between bases.

Related MCQs

What is the structure of DNA?
What is the main function of a phospholipid in the cell?
Which type of bond links amino acids in a protein?
Which enzyme is responsible for converting pyruvate to acetyl-CoA?
Which biomolecule stores genetic information in a cell?
Which term describes the movement of water across a selectively permeable membrane?
What is the primary function of ribosomal RNA (rRNA)?
Which process produces ethanol in yeast cells under anaerobic conditions?
Which of the following molecules is involved in the synthesis of RNA from a DNA template?
Which of the following is a feature of eukaryotic cells but not prokaryotic cells?
Which of the following is the main function of the smooth endoplasmic reticulum?
What is the primary role of the mitochondrion?
Which polysaccharide is the main storage form of glucose in plants?
Which of the following is NOT a component of nucleotides?
Which macromolecule is primarily responsible for structural support in plants?

Search for: