biogenesis

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biogenesis

the principle that a living organism must originate from a parent organism similar to itself

Biogenesis

 

theories denying the appearance of life on earth as the result of the origin of living organisms from nonliving matter. The basis of the concept of biogenesis lies in the contrast between the living and the nonliving and in the idea of the eternalness of life. Proponents of biogenesis assumed that the embryos of living organisms were carried to the earth from other, older celestial bodies—the theory of panspermia. This theory was supported by the German chemist J. von Liebig, the physicist and physiologist H. Helmholtz, the Swedish chemist S. A. Arrhenius, and others who opposed the theory of panspermia to the notion that was prevalent in the mid-19th century of the spontaneous generation of complex animals (worms, flies, and others) from spoiled meat, dirt, and such. The authors of the theory of biogenesis argued that the transfer of embryos was theoretically possible, since given the absence of oxygen and given the low temperature of cosmic space they could remain in a state of anabiosis. However, it was later ascertained that cosmic rays exert a destructive effect even on extremely hardy bacterial spores. F. Engels pointed out the mistaken nature of the theory; he felt that the notion of the hardiness of the life-bearing material (protein) required by the theory of biogenesis contradicted the data on its chemical properties and that the notion of the eternalness of the primal carriers of life was incompatible with the historical outlook on living nature (see Dialektika prirody, 1969, pp. 263–64).

REFERENCE

Oparin, A. I. Zhizn’, ee priroda, proiskhozhdenie i razvitie, 2nd ed. Moscow, 1968.

L. IA. BLIAKHER

biogenesis

[¦bī·ō′jen·ə·səs]
(biology)
Development of a living organism from a similar living organism.
References in periodicals archive ?
Biogenetic technology is too large and expensive a discipline to be pursued by the individual grower.
That is, formational theories maintain that under ordinary circumstances the conscious, psychological part of the African personality is undifferentiated from its biogenetic basis (Azibo, 1990a) which minimally involves the locus coeruleus or black dot (King, 1979, 1990), neuromelanin (Nobles, 1976a), seven biogenetically-based traits (affectsymbolic imagery synthesis, multidimensional-polysense perceptual orientedness, ebonics, rhythmic-fluid physiomotor responsiveness, stylistic expressiveness orientation, affiliative-socializing orientation, and religious orientation) (Baldwin, 1981), and the African collective unconscious (Bynum, 1999; Bynum, et al.
Similarly, many breakthroughs in genetics, biology, and medical research (such as biogenetic engineering, cloning, and organ transplantation) nave possible dangers.
Carville, American Biogenetic Sciences, and Norbert Drees, Roche Diagnostic Systems, for providing the TpP and Mb assays.
Biogenetic intervention(4) has brought us the more packable square tomato, one that will travel over time and space, and ripen after arrival at markets.
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The team, led by Lothar Willmitzer of the Institute for Biogenetic Research in Berlin, showed that ABA levels usually rise in both damaged and undamaged leaves of mechanically wounded potato and tomato plants.
According to Azibo, his nosology, which "diagnoses order and disorder in the African personality" (1989,171), assumes three key tenets (advancements) from the radical school of African psychology: "taking the Black perspective (cultural, historical, and conceptual analysis that employs and affirms principles deriving from the African social reality) as the conceptual base for addressing the psychology of African people, positing that personality has a biogenetic basis .
The establishment of biogenetic reserves to ensure the survival of the species against threats such as species isolation and river flow reduction;
WASHINGTON -- A science-based biogenetic approval process is needed at the Food and Drug Administration to assure lower health care costs for patients, said Rasmus Rojkjaer, vice president and head of global biologics research and development at Mylan Inc.
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