Like the geography of the planet, the human body hus until now represented a fixed
point in human experience, as given'. Todny we are fast approuching the day when the body
can no longer be regarded as fixed. Man will be able, within a reasonably short period, to
redesign not merely individual bodies, but the entire human race. Molecular biology is now
about to explode from the laboratories. New genetic knowledge will permit us to tinker
with human heredity and manipulate the genes, to create altogether new versions of man.
One of the more fantastic possibilities is that man will be able to make biological carbon
copies of himself. Through a process known as 'cloning' it will be possible to grow from
the nucleus of an adult cell a new organism of the person contributing the cell nucleus.
The resultant human 'copy' would start life with a genetic endowment identical to that of
the donor, although cultural differences might thereafter alter the personality or physical
development of the clone.
Cloning would make it possible for people to see themselves born anew, to fill the world
with twins of themselves, Cloning would, among other things, provide us with solid empinical
evidence to help us resolve, once and for all, the ancient controversy over 'nature vs nurture'
or 'heredity vs environment. The solution to this problem, through the determination of the
role played by each, would be one of the great milestones of human intellectual development.
But cloning could also create undreamed of complications for the race. There is a certain
charm to the self to posterity. But what of Adolf Hitler? Should there be laws to regulate
cloning? Nobel laureate Joshua Lederberg, a scientist who takes his social responsibility
very seriously, believes li conceivable that those most likely to replicate themselves will be
those who are most narcissistic, and that the clones they produce will also be narcissists.
How close is the day of cloning? 'It has already been done in amphibia,' says Lederberg,
and somebody may be doing it right now with mammals. It wouldn't surprise, if it comes
out any day now, when someone will have the courage to uy it on a man. I haven't the
loggiest idea. But I put the time scale on that anywhere from zero to fifteen years from
now. Within fifteen years. 'During those same fifteen years scientists will also learn how
the various organs of the body develop, and they will, no doubt, begin to experiment with
various means of modifying them,' says Lederberg.
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