3. A
T
G
C
A
T
G
As the Helicase goes up
through the stand of DNA is
unzipping the strand. As it
unzips the strand it is
breaking the hydrogen
bonds apart from each of
the bases.
C
A
T
Key:
Adenine
Guanine
G
A
G
A
Thymine
Cytosine
C
T
C
Sugar
Phosphate
T
Helicase
4. A
T
G
C
A
T
G
This is showing how
the hydrogen bonds
are breaking as the
Helicase is moving up
through the DNA
strand.
C
A
T
G
C
A
T
G
C
A
T
10. T
A
G
A
Then all the single strands,
the Okarzki fragments and
Ligase will form a
phosphodiester bond.
Key:
Adenine
T
Thymine
Guanine
C
Cytosine
C
G
T
A
Sugar
Phosphate
C
G
A
T
G
C
A
T
Helicase
A
T
G
C
A
T
11. A
On the left is the leading
strand, which the bases are
synthesized continuously. On
the right is the lagging strand,
where the bases are
synthesized discontinuously .
Which DNA polymer III adds
five phosphate end of a free
floating nucleotide to expose
3’ OH.
G
A
G
T
C
T
C
A
T
A
T
G
C
G
C
A
T
A
T
G
C
G
C
A
T
A
T