The reason why the infant of the mother has this type of abnormality is because of a history that she could have done that could have contributed to this abnormality, what would likely be the cause and the reason it occurred is because the mother has a history of chronic alcohol abuse.<span />
Replication is the process where DNA molecules copies itself to form another DNA molecule during cell division. it involves several enzymes which includes DNA helicase, the enzyme that unwounds the DNA double helix. RNA primase, it is an enzyme that creates an RNA primer. DNA polymerase, it is the enzyme that matches and lays down nucleotides to form the new DNA daughter. DNA ligase joins the Okazaki fragments by catalysing the formation of phosphodiester bond.