The reason that explains why DNA replication occurs in a continuous-discontinuous fashion is that DNA polymerase only works to add nucleotides in one direction of the growing chain.
DNA replication refers to the process by which the genetic material is replicated before cell division.
DNA replication involved specific enzymes that work in a concerted manner to replicate DNA molecules.
DNA polymerase is a specific enzyme used during DNA replication to add nucleotides in direction 5' to 3', which is the direction of the growing chain.
Learn more about DNA replication:
https://brainly.com/question/21265857