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Inside this Book – Radioisotope techniques, to the naive, may represent the panacea for investigation difficulties — the royal road to successful experimentation ; to the cynic they may appear as gadgetry, a fad that creates more prob- elms than it solves. As always, the truth lies somewhere between the extremes. The really important contributions of these procedures in the biological field will be realized only insofar as they are utilized by investigators who are well grounded and have been working in the field of application. This is not to belittle the physical scientist, whose tremendous contribution is acclaimed by all. Nevertheless it is the biologist who recognizes the important problems in his own field, is familiar with the experimental material, and must be counted upon to make the interpretations.
Inside this book –Radioisotopes in biology and agriculture PDF Book by C. L. Comar – Obviously, radioisotopes may be used simply to follow movement or transport. If it is physically possible, a radioisotope can be attached to or implanted in the organism. Cobalt 60 and tantalum 182 are especially suited for this purpose, since they are relatively inert chemically and biological and emit gamma rays that can be conveniently detected even though considerable mass may be interposed between the source and the detecting device. The depth, location, and lateral movement under- ground of wire worm larvae have been followed by the insertion of wire in the body cavity, and wire worm beetles have been labeled by placing Launder the wings. An alternative procedure with small organ- isms is to use a radioisotope that becomes incorporated metabolically in the body. Malaria, house, and rock-pool mosquitoes houseflies, fruit flies, root maggot flies, black flies, and screwworm flies have been labeled usually by mixing with the food of the larvae, resulting in the production of adults that could be distinguished by Geiger counting. Cockroaches and flesh flies have been injected with so that they could be detected at a distance.
Radioisotopes in biology and agriculture by C. L. Comar PDF : eBook Information
- Full Book Name – Radioisotopes in biology and agriculture
- Author of this Book – C. L. Comar
- Language – English
- Book Genre – Radioisotopes in Biology, Radioisotopes in Agriculture, Radioisotopes, Novel
- Download Format – PDF
- Size – 34.5 MB
- eBook Pages –504
- Price – Free