Exploring DNA Replication: A Simple Guide

What are the three main stages of DNA replication?

• Start, Middle, End

• Initiation, Elongation, Termination

• Replication, Transcription, Translation

• Separation, Duplication, Division

During the initiation stage, which enzyme is responsible for untwisting and separating the DNA strands?

• Primase

• Ligase

• Helicase

• DNA polymerase

In the elongation stage, what role does DNA polymerase play?

• It terminates the replication process

• It twists the DNA strands

• It adds free nucleotides to form a new strand

• It separates the DNA strands

Which enzyme is responsible for adding free nucleotides to the end of a DNA chain during elongation?

• Ligase

• DNA polymerase

• Helicase

• Primase

What is the term used to describe the mode of DNA replication where each new DNA molecule contains one original strand and one new strand?

• Conservative

• Non-conservative

• Dispersive

• Semi-conservative

Why is it crucial for DNA replication to be precise?

• To prevent cell aging

• To speed up cell division

• To create new types of cells

• To ensure the new cells have the same genetic material as the parent cell

What could be the consequence of an accidental addition of an inappropriate nucleotide during DNA replication?

• It could create a new gene

• It could speed up the replication process

• It could stop the cell from dividing

• It could render a gene dysfunctional

Which process helps to minimize mistakes during DNA replication?

• DNA termination

• DNA proofreading

• DNA elongation

• DNA initiation

What is the role of special enzymes in the DNA proofreading process?

• They separate the DNA strands

• They terminate the replication process

• They scan and correct mistakes in the newly synthesized DNA

• They add nucleotides to the DNA strand

What happens once the process of DNA replication is complete?

• The cell is ready to divide

• The DNA strands separate again

• The cell stops functioning

• The DNA strands twist back together