Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Plural form of
eukaryote .
Etymologies
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Examples
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In any event, the probability that two or three origins of multicellularity simply arose by chance within eukaryotes as opposed to prokaryotes is somewhere on the order of 1/4 to 1/2, well below the general standards of statistical validity.
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Symbiogenesis – the appearance of new behaviors, tissues, organs, organ systems, physiologies or species as a result of symbiont interaction – is the major source of evolutionary novelty in eukaryotes: animals, plants and fungi.
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In any event, the probability that two or three origins of multicellularity simply arose by chance within eukaryotes as opposed to prokaryotes is somewhere on the order of 1/4 to 1/2, well below the general standards of statistical validity.
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They draw on Hartman's and Federov's work on eukaryotic signature proteins (ESPs) – that is, proteins that are widespread in eukaryotes but with no homologs in prokaryotes.
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The existence of obligate bacterial endosymbionts in some present eukaryotes is often presented as a substitute for a mechanism, but they remain bacteria and give not rise to new organelles.
A critique on the endosymbiotic theory for the origin of mitochondria 2007
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That bacteria are reduced eukaryotes is one message you can take away from it.
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Are you disputing that mutation rates in eukaryotes are or = 10E-9?
Behe Responds 2007
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Starting from the beginning, the view of bacteria as reduced eukaryotes is easily compatible with front-loading seen in isolation, but I'm wary of it for other reasons.
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For example, there are those who think the whole idea of horizontal gene transfer to multicelular eukaryotes is unproven.
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Regulation of translation by antisense RNA also occurs in eukaryotes as was first demonstrated in 1993 when genes governing the development of the worm Caenorhabditis elegans were studied5,6.
Advanced Information: The 2006 Nobel Prize in Physiology or Medicine 2006
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