DNA Replication Concepts

What is the primary purpose of DNA replication?

• To create new cells

• To make more DNA

• To code for traits

• To break down molecules

In which part of a eukaryotic cell does DNA replication primarily occur?

• Cytoplasm

• Nucleus

• Mitochondria

• Ribosomes

Which enzyme is known as 'the unzipping enzyme' because it unwinds the DNA double helix?

• DNA Polymerase

• Primase

• Ligase

• Helicase

What is the function of Primase during DNA replication?

• To glue DNA fragments together

• To build new DNA strands

• To prevent DNA from supercoiling

• To create a starting point for DNA Polymerase

How are the two strands of a DNA molecule oriented relative to each other?

• They run in the same direction.

• They run in opposite directions.

• One runs clockwise, the other counter-clockwise.

• Their directions are not important.

In which direction does DNA polymerase build a new DNA strand?

• 3' to 5' direction

• 5' to 3' direction

• North to South direction

• Clockwise direction

What are the short DNA segments formed on the lagging strand during replication called?

• Watson-Crick fragments

• Okazaki fragments

• Helicase fragments

• Primase fragments

After DNA replication, what does each new DNA molecule consist of?

• Two entirely new strands.

• Two entirely original strands.

• One original strand and one newly made strand.

• A mix of RNA and DNA strands.