Amoeba Sisters DNA replication interactive video

Front

What is DNA replication?

Back

The process by which a cell makes an exact copy of its DNA, ensuring that each new cell has the same genetic information.

Front

What are Okazaki fragments?

Back

Short segments of DNA synthesized on the lagging strand during DNA replication.

Front

Where does DNA replication occur in eukaryotic cells?

Back

In the nucleus.

Front

What phase of the cell cycle does DNA replication occur?

Back

Interphase.

Front

What is the role of helicase in DNA replication?

Back

Helicase is the enzyme that unwinds and separates the two strands of DNA.

Front

What is the function of DNA polymerase?

Back

DNA polymerase is the enzyme that synthesizes new DNA strands by adding nucleotides complementary to the template strand.

Front

What is the leading strand in DNA replication?

Back

The strand that is synthesized continuously in the same direction as the replication fork.

Front

What is the lagging strand in DNA replication?

Back

The strand that is synthesized discontinuously in short segments (Okazaki fragments) opposite to the direction of the replication fork.

Front

What is primase?

Back

An enzyme that synthesizes a short RNA primer to provide a starting point for DNA synthesis.

Front

What are telomeres?

Back

The repetitive nucleotide sequences at the ends of chromosomes that protect them from deterioration.