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Dictionary » E » Eukaryote

Eukaryote

Definition

noun, plural: eukaryotes

Any of the single-celled or multicellular organisms whose cell contains a distinct, membrane-bound nucleus.


Supplement

Organisms such as animals, plants, fungi, and protists are examples of eukaryotes because their cells are organized into compartmentalized structures called organelles, the nucleus in particular. The presence of a distinct nucleus encased within membranes differentiates the eukaryotes from the prokaryotes. The eukaryotes are also known for having cytoplasmic organelles apart from nucleus, such as mitochondria, chloroplasts and Golgi bodies. Eukaryotes often have unique flagella made of microtubules in a 9+2 arrangement.


Word origin: Greek eu- (good-, well-, true) + káry(on) (nut, kernel).

Related forms: eukaryotic (adjective).

Compare: prokaryote.


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chromosome 2 replication.

... chromosomes. There is a whole phase inbetween the two (G2). But that's beside the point. i don't know much specifially about chromosome 2 (for any eukaryote, though it seems you're refering to humans) but... eukaryotic chromosomes have many origins of replication within the strands. the strands ...

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by Eous
Mon Aug 03, 2009 2:23 am
 
Forum: Genetics
Topic: chromosome 2 replication.
Replies: 4
Views: 149

The Colin Leslie Dean species paradox

... can reproduce both Asexually (by mitosis) and sexually (by meiosis). This offers a selective advantage in changing environments Of the identified eukaryote species we have: * 1.6 million, including: o 297,326 plants, including: + 15,000 mosses, + 13,025 Ferns and horsetails, + 980 gymnosperms, ...

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by gamila
Sat Jul 18, 2009 6:32 am
 
Forum: Evolution
Topic: The Colin Leslie Dean species paradox
Replies: 120
Views: 2138

The Colin Leslie Dean species paradox

... can reproduce both Asexually (by mitosis) and sexually (by meiosis). This offers a selective advantage in changing environments Of the identified eukaryote species we have: * 1.6 million, including: o 297,326 plants, including: + 15,000 mosses, + 13,025 Ferns and horsetails, + 980 gymnosperms, ...

See entire post
by gamila
Fri Jul 17, 2009 5:42 am
 
Forum: Evolution
Topic: The Colin Leslie Dean species paradox
Replies: 120
Views: 2138

The Colin Leslie Dean species paradox

... can reproduce both Asexually (by mitosis) and sexually (by meiosis). This offers a selective advantage in changing environments Of the identified eukaryote species we have: * 1.6 million, including: o 297,326 plants, including: + 15,000 mosses, + 13,025 Ferns and horsetails, + 980 gymnosperms, ...

See entire post
by gamila
Wed Jul 15, 2009 12:45 pm
 
Forum: Evolution
Topic: The Colin Leslie Dean species paradox
Replies: 120
Views: 2138

Natural selection is proven wrong

... see de Robertis & Sasai 1996 and Holland 2002 for other perspectives). * The very early evolution of life generally (> 3,500 Ma), and eukaryote life in particular (> 1,200 Ma); * Molecular and microfossil evidence for an ancient (~ 1,000 Ma) diversification of eukaryotes; * Our ...

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by gamila
Mon Jun 15, 2009 6:45 am
 
Forum: Evolution
Topic: Natural selection is proven wrong
Replies: 177
Views: 16271
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