This document discusses several key steps and concepts related to DNA replication: 1) In the first step of DNA replication, adenine pairs with thymine and guanine pairs with cytosine as the DNA strands start to unzip. The phosphate groups also attach to the strands. 2) Next, the DNA strands fully unzip and the phosphate groups move in opposite directions. 3) Then, the appropriate nucleotide base pairs start to replicate on each strand. 4) Finally, the two newly formed DNA strands are completed and the phosphate groups attach to their respective molecules.

1. In this stage of DNA
replication, The adenine
matches up with the
thymine, and the guanine
matches up with the
cytosine. Also, the phosphate
attach themselves to the
DNA strand.

2. In this step of DNA
replication, the DNA strands
start to unzip, and the
phosphate groups go in
different directions.

3. In this step
of DNA
replication,
the bases
start to
replicate
with their
appropriate
pairs.

4. In this step of
DNA
replication, the
two strands of
DNA are
finalized and
the phosphate
groups go to
their assigned
molecules.

5. What is the purpose of DNA
replication?
• The purpose of DNA replication is to make
new cells and DNA for your body. It also keeps
your body healthy and young.

6. Telomeres
• The long stretches at the ends of the
chromosome.

7. Okazaki fragments
• When DNA polymerase can begin to
synthesize a section of complementary strand.

8. DNA ligase

9. Telomerase
• Can synthesize a new strand of DNA as it
moves along the template strand.

10. Cancer
• Cells that mutate and give you a disease.

11. Transplanted Cells
• They remove cells from the patient, transform
them with the gene for the product that the
patient has been able to synthesize.

12. Cloning
When a sheep got it’s nucleus taken from it it’s
cells started growing rapidly during a seven
week period.

13. Aging
• As the telomeres get older in your body, the
cells might get an infinite span on their life.