Get A many-colored glass : reflections on the place of life in PDF

By Freeman J. Dyson

ISBN-10: 0813926637

ISBN-13: 9780813926636

"Freeman Dyson's most recent booklet doesn't try and compile all the celebrated physicist's recommendations on technology and know-how right into a unified conception. The emphasis is, as a substitute, at the myriad ways that the universe offers itself to us - and the way, as observers and members in its approaches, we reply to it." "Taken from Dyson's contemporary public lectures - brought to audiences with out specialized Read more...

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Emphasises the myriad ways that the universe offers itself to us - and the way, as observers and members in its tactics, we reply to it. This paintings seeks to discover the diversity that gives Read more...

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Additional info for A many-colored glass : reflections on the place of life in the universe

Sample text

A wheat plant charac- terized both by enhanced drought resistance and resistance to, say, stem rust disease would be readily distinguishable from representative starting material displaying drought resistance or stem-rust resistance, respectively. In any event, it is apparent that the application of selection criteria during the third stage of the development cycle culminates in the applied biologist differentiating what he started with (the unmodified system of living matter) from what he wants (his 'invention').

If so, somaclonal variation would offer a different spectrum of variability from conventional mutationinduction (which has not, in practice, been notably useful). ' Simmonds, 'Gene Manipulation and Plant Breeding,' in GENE MANIPULATION IN PLANT IMPROVEMENT 637, 650-51 (1984). See generally Miller, 'Somaclonal Variation: Harvest of an Agronomic Anomaly,' Science News 128: 120-21 (1985); Chaleff, 'Isolation of Agronomically Useful Mutants from Plant Cell Cultures,' Science 219: 676-82 (1984). 0 E :::1 z .........

T n1 might not, will depend primarily on the breeder's individual perception of how 'significant' Tn2 is, both alone and combined with T 1 through T n 1· The breeder's sense of 'significance' in this context is, in turn, usually influenced by a complex mix of technical and commercial judgments, lending an even more subjective cast to the ultimate determination of whether a new variety has been derived. Indeed, in many cases the vitality of this determination is not apparent until after the marketplace appeal of a supposed 'new' variety has been tested.

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A many-colored glass : reflections on the place of life in the universe by Freeman J. Dyson


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