DNA Replication
DNA Replication
 Replication = DNA copies itself exactly
(Occurs within the nucleus)
http://www.youtube.com/watch?v=zdDkiRw1Pd
U
A. Facts of DNA Replication
1. Complementary
base pairing
rule:
C-G
A-T
A. Basic Facts of DNA
Replication
2. One side of DNA
molecule is
a
template
for
making
the
other side
(strand)
B. Process of DNA Replication
1.
Uncoil & unzip DNA molecule
 Enzyme Helicase breaks
Weak
Hydrogen Bonds
B. Process of DNA Replication
2. Enzyme Polymerase adds
complementary N-bases
Replication Moovie
C-G
A-T
C. Semi-conservative replication
?’s 4-6
1. Each new DNA
molecule
contains
one old strand
&
one new strand
Lets Practice!
-Original Strand: ACT GTT ACG GAC
Complementary Strand: TGA CAA TGC CTG
-Original Strand: TTT CAT TAC TTT
Complementary Strand: AAA GTA ATG AAA
-Original Strand: ACT GTT ACG GAC
Complementary Strand:
TGA CAA TGC CTG
DNA Replication and the Cell
Cycle
https://www.youtube.com/watch?v=InCeAQGU_r4