Helicases to be termed as enzymes that is blind and contains acid i.e. remodel nucleic or have protein i.e. nucleic acid. It is important as the time of DNA replication as it divided the DNA i.e. double stranded into one single standard that permits each and every strand for copied it
Also it cracks the bonds i.e. hydrogen that lies between the two strands this could create a replication fork.
Therefore in the given case, the helicases is affected
Lake Ontario doesnt freeze over as easy because it is longer, resulting in thiner ice, which will easily melt and break off, while lake superior is deeper, which makes the ice thicker. And lake Ontario isn't as deep which doesn't make it as thick.