Download War Heads.

Cloning:

Cloning is the process in which you manipulate
nature to duplicate it.
history
In the late 1800s a scientist named Hans Driesch started to experiment
on cloning. He did this not to get identical products but to prove that
genetic material isn’t lost during cell division.



In 1902 Hans Spemann started to clone on salamanders. Since their
cells are so small he had to use his sons hair as a knife to separate the
cells.
In 1977 German scientist had succeeded in cloning three mice. Since
the cells are so small other scientist didn’t believe that he had
accomplished that experiment, so they challenged to redo it. They
went through his lab and found embryos in a cabinet, when they saw
that they where all at different stages they didn’t believe his success.
July 5th 1996, the first cloned lamb was born. Dolly the sheep who was
cloned took 277 attempts to create and hasn’t been able to recreate. It
took a year to make sure her DNA was the same as the frozen
mammary cells.
5 benefits
It might be able to reverse aging.
 Clone important organs for transplants.
 It might replace your defective genes.
 For women who go through infertility it can
be possible for couples to have children.
 It can help scientist come up with a cure
for cancer.

5 risks/flaws
Telemetric differences .
 Abnormal gene expression patterns.
 Problems during later development.
 There is a high failure rate.
 Clones may die off easily if not under good
conditions.

5 examples
Dolly the cloned sheep.
 Transgenic mice.
 Monoclonal antibody production.
 Cloning a YAC.
 Reproducing things

Future of cloning
Human genes may be introduced into
other organisms.
 Transgenic animals may produce human
proteins.
 Ex.) pigs and sheep they would become
“Drug factories”
 They would be able to produce human
proteins in its milk and insulin, used to
treat diabetes.

Ethical issues
Cloning is unnatural self-engineering.
 Will failures, such as deformed.
 Clone may not be accepted.
 The risks to the first person.
 Clone may die.

Your opinion
We think that cloning has its benefits but
also major issues. Scientist should keep
performing experiments to add information
to their research. Then maybe some day
we will be able to clone humans.
Bibliography
http://library.thinkquest.org/24355/data/rea
ctions/future.html
 http://www.actionbioscience.org/biotech/hc
gee.html
 http://library.thinkquest.org/20830/Framele
ss/Manipulating/Experimentation/Cloning/l
ongdoc.htm
 robby.nstemp.com/

WAR HEADS
GOOD-BYE