Rachel+M+S

flat =Cheek Cell Homework:= Did everyone in your group have about the same extraction results? Why is this the case? How is the amount of DNA that you extracted affected by your day to day activities?

Everyone in our group didn’t get the same extraction results because not everyone was able to take out the same amount of cells from their cheeks. The amount of DNA we extracted is affected by our day to day routines because if you are chewing gum then you already have your dead cheek cells in the gum and if you have braces your gums would constantly be cut up and so on.

=DNA Replication Summary: = In order to replicate DNA there are 4 steps that happen. First, Helicase is used to break the hydrogen bonds that are in DNA to hold it together so that you can have two separate strands. Next, Single Stranded Binding Proteins are attached to keep the strands from coming back together. Third, primase, or a starting point for the actual replication, is attached to the leading strand to begin this process. Lastly, Polymerase binds and begins to replicate the DNA. During this it splits them into fragments called, Okazaki Fragments. Ligase is then attached to piece the Okazaki fragments together, ultimately creating a replication of the original DNA strand. The Lagging stand requires these Okazaki Fragments so that when there are openings they can go into these to help make the replicated strand of DNA.

=DNA Vocabulary Infographic:= Sources: [] [] [] [] []

= Infectious Disease Infographic: =

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