DNA Replication

Front

What do 3' and 5' refer to in DNA structure?

Back

They refer to the direction the nucleotides are pointing.

Front

Which enzyme unwinds the DNA double helix during replication?

Back

Helicase.

Front

What are the gaps between newly synthesized DNA on the lagging strand called?

Back

Okazaki fragments.

Front

What percent of each new DNA strand is made up of the old strand?

Back

Half of each new DNA is the old DNA.

Front

Which enzyme adds free nucleotides to the replicating DNA?

Back

DNA polymerase.

Front

What is the role of DNA polymerase I?

Back

It removes RNA primers and replaces them with DNA.

Front

What is the function of DNA ligase?

Back

It joins Okazaki fragments on the lagging strand.

Front

What is the significance of the leading and lagging strands in DNA replication?

Back

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

Front

What is the purpose of the RNA primer in DNA replication?

Back

It provides a starting point for DNA synthesis.

Front

What is semi-conservative replication?

Back

It is the process where each new DNA molecule consists of one old strand and one new strand.