Tuesday and Wednesday's Daily Questions

We have continued with our discussion on DNA structure and replication.  Tuesday's daily question focused on DNA structure.

Tuesday March 27^th

What are the three main parts that DNA is made up of?

5 Carbon Sugar (Deoxiribose), A phosphate group, and a nitrogenous Base.

How do the 4 different nitrogenous bases pair up with each other?

Adenine with Thymine (A-T) and Guanine with Cytosine (G-C)

Given the following Strand of DNA, please tell me what the complementary strand would be.

ATTGGCTCGGA

TAACCGAGCCA

We then went through notes about DNA replication.  (Check Edline for these)

Wednesday's set of daily question focused on DNA replication:

Wednesday March 28^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 “Proof Reader”.

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)   On original strand and one new strand

We then finished up the notes on DNA replication.  My plan is to start working with the Kinex models tomorrow and Friday to go through making and replicating DNA.