Pics from the week!!!

Today was carnival day.... which meant a lot of people missing! But alas - we still chugged along!  I started you off with a couple daily questions about DNA replication BEFORE we took the Daily Question quiz.  Here they are!!

Friday April 13^th

There are two enzymes involved in DNA Replication.  The first one DNA Helicase unwinds and “unzips” the double helix.

The second one DNA Polymerase adds new nucleotide bases at the replication fork.  It also acts as a “Proofreader”.

At the end of DNA replication we have two identical DNA molecules.  How are these two molecules related? (This is the reason that DNA replication is known to be “semi conservative”) Each of the two DNA molecules has One Old strand (template strand) and one New Strand 

We then went over it and those classes that did not finish the notes yesterday finished those off.  We will work with DNA models again on Monday.  There were just too many people missing today to try and work with them!  Here are some pics from earlier this week when you DID get a chance to work with them!!

Adding Nucleotide bases to the Sugar phosphate Backbone

Twisted into a "double helix"

Finished Structure