Word: evolutionism
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To be sure, the most reliable basis for assessing the hazards will ultimately be provided by the accumulation of experience with recombinants. But meanwhile we should not act as though we are entering this new territory with no knowledge to guide us: we have a good deal of pertinent information...
Let us now review some of the pertinent principles from evolution and microbiology.
It is clear that natural selection plays an overwhelming role in evolution, though with bacteria its role was long unrecognized: the population shifts seemed too rapid for an undirected process, and the existence of genes and mutations in bacteria was not recognized until the 1940s. But by now selection has...
(1) The Meaning of Species. As evolution created the process of sexual reproduction, whose reassortment of genes provides a vastly increased supply of genetic diversity for the mill of natural selection, it also developed species: groups of organisms that reproduce only by mating with other members of the same group...
I would like to concentrate on a kind of experiment that is causing great concern and is restricted to quite special facilities: the so-called "shotgun" experiment with random fragments of DNA from animal cells. Two considerations seem pertinent. First, the probability that any fragment will contain a gene for...