DNA Replication Notes

It synthesizes new DNA strands by adding nucleotides.

It prevents the DNA strands from rejoining.

It seals the gaps between Okazaki fragments.

It unwinds the DNA double helix.

Topoisomerase

Helicase

Primase

DNA ligase

It prevents supercoiling of DNA.

It removes RNA primers.

It adds nucleotides to the growing DNA strand.

It synthesizes RNA primers.

Short DNA sequences that prevent DNA from rewinding.

Short DNA sequences synthesized on the leading strand.

Short RNA sequences synthesized by primase.

Short DNA sequences synthesized on the lagging strand.

Topoisomerase

Helicase

DNA polymerase III

DNA polymerase I

They replace RNA primers with DNA.

They prevent the DNA strands from rejoining.

They unwind the DNA double helix.

They synthesize new DNA strands.

Leading strand is synthesized continuously, lagging strand is synthesized in fragments.

Leading strand is synthesized in fragments, lagging strand is synthesized continuously.

Both strands are synthesized continuously.

Both strands are synthesized in fragments.

It adds nucleotides to the growing DNA strand.

It seals the gaps between Okazaki fragments.

It synthesizes RNA primers.

It prevents supercoiling of DNA.