BUILDING DNA
Building DNA requires a step by step approach
Get the K^NEX box of DNA parts. Work in groups. Each box has a booklet that explains each
part of the DNA molecule. Make sure you are well versed on each part. Show me each part
before you continue to the next part.
1. PARTS OF DNA
List the parts of a DNA molecule. Include all four of the base pairs. The 2 H bond and the
3 H bond. Phosphate and deoxyribose sugar. (Pg 3) TAKE PICTURE OF EACH PART.
.
1. deoxyribose sugar- white (parent strand)
2. 2- Hydrogen bond
3. 3-hydrogen bond
4. thymine
5. adenine
6. cytosine
7. guanine
8. phosphate group
2. DNA STRUCTURE
Following this sequence :
Adenine Thymine Cytosine guanine
1. Individually build each of the FOUR nucleotides. Label. (Pg 3) use your
laptop to take a picture
2.
3. Connect the 4 base nucleotides to each other in a straight line.. (pg 4) use
your laptop to take a picture
4.
Build four more bases and connect them properly (remember to determine
if they are double-triple hydrogen bonds between the nucleotides.) (pg 5)
use your laptop to take a picture - COMPLETED DNA DOUBLE HELIX
3. REPLICATION:
1. Use your hand to represent helicase to break the hydrogen bond between
the two strands. Take a picture
2. Use your hand to represent polymerase and pick up free nucleotides to
attach the daughter nucleotides to parent nucleotides. REMEMBER TO
REPRESENT LAGGING AND LEADING STRAND IN YOUR POWER
POINT EXPLAIN. use your laptop to take a picture OF EACH.
3. Use your laptop to take a picture of the two NEW daughter DNA
molecules
POWERPOINT:
Use your pictures to create a learning powerpoint that explains the structure of
NUCLEIC ACID, DNA, AND REPLICATION.
PUT IN TURNITIN. DUE FRIDAY 12/18