Fragment of Okasaki is a term used in biology, in the study of the Chromosome S.

The “delayed” bit is synthesized by small fragments (approximately 10 pairs of bases): the fragments of Okasaki .

DNA Polymerase to make the synthesis of DNA requires a Amorce (small fragment of DNA or ARN). This starter ARN is brought by the enzyme ARN Primase which is an enzyme ARN dependant polymerase DNA.