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The Science of Life
10 Oct 2007, 0046 hrs IST

For hundreds of years philosophers and scientists have been rationalising
themselves blue in the face trying to figure out how life could have arisen
out of inanimate matter. Even the Darwinian theory of evolution which does
such a great job of explaining how natural selection results in the
development of new species can't explain by what exact processes life first
happened. Yet now, if controversial US scientist Craig Venter's claim can be
verified, it's apparently not such a big deal after all.

Venter, whose company became famous for running a parallel version of the
Human Genome Project in 1999, says he's built a synthetic chromosome using
chemicals made in a laboratory. Called 'Mycoplasma laboratorium', the
created creature consists at present of a chromosome which is 381 genes long
and contains 5,80,000 base pairs of genetic code, using lab-made chemicals.
The researchers' plan is to transplant it later into a living bacterial cell
and, in the final stage of the process, it's anticipated to take control of
the cell and, in effect, become a new life form.

Predictably, the groundbreaking work has caused heartburn among people who
feel it breaches a societal boundary and that science is beginning to play
God. The US government, for instance, which does not provide federal funding
for embryonic stem cell research will probably feel the development is
ominously more significant than even the cloning of Dolly the sheep a decade
ago. At the same time, the fact that this year's Nobel prize in medicine has
gone to a group of people doing fundamental work in stem cells involving
gene targeting, shows that apex scientific communities are already
recognising and accepting such research as routine.

And, indeed, they should because genetic therapies and the use of stem cells
to create new tissues have moved from the arena of fantasy to laboratories
and hospitals. Moreover, gene-targeting in particular has helped expand the
knowledge of numerous genes in embryonic development, adult physiology,
ageing and disease. The research also offers the best hope yet of unlocking
the molecular secrets of illnesses ranging from congenital heart disease to
Alzheimer's. Or as inventor Venter puts it, we are going from reading our
genetic code to writing it, which gives us the hypothetical ability to do
things never contemplated before. So long as reasonable controls are in
force, what's wrong?

Rayilyn Brown
Board Member AZNPF
Arizona Chapter National Parkinson's Foundation
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