Where are the
human clones?
Imagine
Earth in the future, 100 or 300 or even a thousand years from now.
Among all future technologies, is there a place for genetic cloning technology?
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| https://www.pinterest.com/pin/337207090819298107/ |
Perhaps
you imagine it as in this image, but for now, it looks completely different.
Although it may look like this in the future, the question is how far away and
at what stage are we now?
But what is a clone, really?
Simply
put, a clone is an organism that is genetically identical to
it’s ancestor. And contrary to the popular belief, cloning is a natural process
that is
present in nature. It occurs in the asexual reproduction of living beings such
as bacteria, plants, and even identical twins.
Long
Research Path Led to Dolly
Dolly was born on 5th July 1996 and at the age of six
months, Dolly the cloned sheep was presented to the world amid much
controversy. Newspapers proclaimed the scientific community was "in an
uproar"; others said the creation was "anticipated and dreaded"
and the announcement prompted inevitable claims of human cloning being close to
reality.
After more than
20 years Shanghai scientists used modern technology developed only in the last
couple of years to enhance the technique used to clone Dolly have created pair
of genetically identical crab-eating macaques. The monkeys are named Hua Hua
and Zhong Zhong.
How
is cloning being used today?
While most
cloning techniques are still within laboratories, there is a commercial
industry that exists to produce clones of animals.
For example, South Korea-based Sooam Biotech
clones pets for around $100,000. One
couple in the UK recently spent £67,000 on cloning their dead dog after sending
the DNA to a company in South Korea. The cloned puppies were shipped to the UK.
US company
Viagen is able to clone horses, livestock – including cows, pigs, sheep, and
goats – as well as pets.They clone cats for $25,000 and dogs for $50,000.
ViaGen has
been operating for 15 years and in that time has "cloned thousands of
animals". It says all the pets it produces are "normal healthy
puppies and kittens".
Continuing Onward With Cloning
Many thousands of
cloned mammals have been produced in nearly two dozen species. To date, the
most valuable contribution of experiments has been the scientific information
and insights gained. This information is already helping reduce birth defects,
improve methods of circumventing infertility, develop tools to fight certain
cancers and even decrease some of the negative consequences of aging – in
livestock and even in people. Two decades since Dolly, important applications
are still evolving.
Maybe someday,
science will be capable of protecting
the endangered species and bringing back long extinct ones, such as mammoths
and even dinosaurs. Although at
the expense of dinosaurs, I know at least a few films that show that this is
not a best idea :)
Questions:
1.
Do
you think we can ever clone a person?
2.
Will
it bring the world more benefits or harm (like clone ourselves in order to live
forever, or raise clone to harvest as organ donors)
3.
Would
you decide to clone your pet like that couple from the UK?
Sources:
Made by Yurii
Gevtsi s14185


