DNA Replication: The Faithful Copying of Genetic Information

DNA helicase is the enzyme that unwinds the DNA double helix during replication, creating a replication bubble.

Primer RNA is a short RNA molecule that is synthesized by primase and provides a starting point for DNA polymerase to add nucleotides during replication.

DNA polymerase is the enzyme that adds nucleotides to the growing DNA strand during replication, using the template strand as a guide.

DNA ligase is the enzyme that joins the Okazaki fragments on the lagging strand during DNA replication, creating a continuous DNA strand.

The replication fork is the structure that forms at the replication origin during DNA replication, where the DNA double helix is unwound and replication occurs in both directions.

The replication origin is the region of DNA where replication begins, and from which the replication fork moves in both directions.

The replication terminus is the region of DNA where replication ends, and where the two replication forks meet.

Replication is the process by which DNA is copied during cell division, ensuring that each daughter cell receives a complete copy of the genetic material.

Exonuclease is the enzyme that proofreads the newly synthesized DNA strand during replication, removing any incorrect nucleotides.

DNA repair is the process by which DNA is repaired after damage, such as that caused by UV radiation or chemical mutagens.

RNase H is the enzyme that removes RNA primers from the lagging strand during DNA replication, creating a nick that is then sealed by DNA ligase.

The replication bubble is the structure that forms at the replication fork when the DNA double helix is unwound, creating a region of single-stranded DNA.

Primase is the enzyme that synthesizes RNA primers during DNA replication, providing a starting point for DNA polymerase to add nucleotides.

Reverse transcription is the process by which DNA is copied from RNA, using the enzyme reverse transcriptase.

DNA methyltransferase is the enzyme that adds methyl groups to DNA during replication, modifying the DNA sequence and regulating gene expression.