Emily+S.

flat = = =DNA Extraction From Cheek Cells HW= Did everyone in your group have about the same extraction results? –No, our results were different.

Why is this the case? –Everyone has different DNA cells and some people came up with different amounts than others.

How is the amount of DNA that you extracted affected by your day to day activities? –people who have chubbier cheeks have more cells present, therefore they may have more DNA, also people with braces may have more DNA present.

=Replication Paragraph=

====DNA Replication consists of 4 steps. The first step is to break the two strands of DNA apart. There are hydrogen bonds between them, so a helicase enzyme attaches and breaks them apart. Then, to prevent the two strands that were broken apart from going back together, single stranded binding proteins attach. Then, to give the enzyme a starting point, the primase attaches to the 3 prime ends. And the last step is when the polymerase attaches and the replication process begins. But, in the lagging strand it happens a bit differently. It gets replicated in short fragments called okasaki fragments. Then a ligase enzyme that comes in and fills in the gaps. The lagging strand is made the opposite way that the leading strand is made.====

=DNA Infographic= =Disorder Infographic=