3rd pd DNA Replication Review Dec 2024

Front

What is the role of helicase in DNA replication?

Back

Helicase is the enzyme that unwinds the DNA double helix to prepare it for replication.

Front

What is the correct order of events in DNA replication?

Back

1. Straightens the double helix 2. Breaks Hydrogen bonds 3. Adds Free nucleotides 4. Recoil

Front

Why does DNA replicate?

Back

DNA replicates to create another copy for the new cell.

Front

What enzyme is responsible for setting primers during DNA replication?

Back

Primase is the enzyme that sets primers.

Front

What is the function of DNA polymerase?

Back

DNA polymerase adds nucleotides to the growing DNA strand during replication.

Front

What happens during the unwinding of DNA?

Back

The double helix structure is separated into two single strands.

Front

What is the significance of breaking hydrogen bonds in DNA replication?

Back

Breaking hydrogen bonds allows the two strands of DNA to separate, enabling replication.

Front

What is the role of ligase in DNA replication?

Back

Ligase joins Okazaki fragments on the lagging strand to create a continuous DNA strand.

Front

What are Okazaki fragments?

Back

Okazaki fragments are short sequences of DNA synthesized on the lagging strand during DNA replication.

Front

What is the difference between leading and lagging strands?

Back

The leading strand is synthesized continuously, while the lagging strand is synthesized in short segments.