<P> On the leading strand DNA replication proceeds continuously along the DNA molecule as the parent double - stranded DNA is unwound , but on the lagging strand the new DNA is made in installments , which are later joined together by a DNA ligase enzyme . This is because the enzymes that synthesise the new DNA can only work in one direction along the parent DNA molecule and the two strands are anti-parallel . On the leading strand this route is continuous , but on the lagging strand it is discontinuous . </P>
<P> On the leading strand DNA replication proceeds continuously along the DNA molecule as the parent double - stranded DNA is unwound , but on the lagging strand the new DNA is made in installments , which are later joined together by a DNA ligase enzyme . This is because the enzymes that synthesise the new DNA can only work in one direction along the parent DNA molecule and the two strands are anti-parallel . On the leading strand this route is continuous , but on the lagging strand it is discontinuous . </P>
okazaki fragments are mended together by which type of enzymes
okazaki fragments are mended together by which type of enzymes
DNA ligase enzyme
DNA ligase enzyme