Dictionary » P » Preclude

Preclude

preclude

1. To put a barrier before; hence, to shut out; to hinder; to stop; to impede. The valves preclude the blood from entering the veins. (E. Darwin)

2. To shut out by anticipative action; to prevent or hinder by necessary consequence or implication; to deter action of, access to, employment of, etc.; to render ineffectual; to obviate by anticipation. This much will obviate and preclude the objections. (Bentley)

Origin: L. Praecludere, praeclusum; prae = before _ claudere to shut. See Close.


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Growth on metal pot?!

... dirty pot and prove deadly. Perhaps you have a different perspective and can identify a scenario by which one would pose such a risk. This doesn;t preclude some new leaping pathogen arriving from outer space or via spontenaous generation - was that what you meant?

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by JorgeLobo
Sun Jun 10, 2012 5:37 pm
 
Forum: Microbiology
Topic: Growth on metal pot?!
Replies: 24
Views: 4272

Any SOLID arguments against evolution?

... level, viral transformation have been documented). And if the level horizontal genetic transfer is higher than that of gene creation, it does not preclude the possibility for genes to be copied and then to evolve independantly. To get money I could go in the north of my country and mine for gold, ...

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by canalon
Tue Apr 19, 2011 11:05 pm
 
Forum: Evolution
Topic: Any SOLID arguments against evolution?
Replies: 309
Views: 430354

Na+/K+ ATPase

... (each going down its concentration gradient) by way of this transporter? Explain in detail the characteristics of this active transporter that preclude reverse flow of the ions under normal cellular conditions. HINT: There are two different reasons why the transporter cannot run in the reverse ...

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by akbyst2
Tue Sep 28, 2010 12:22 am
 
Forum: Cell Biology
Topic: Na+/K+ ATPase
Replies: 4
Views: 2880

Recombination in RNA viruses,Ruzic,Kovac

... there is no single phylogenetic tree that can describe the evolutionary relationships between viruses ; the recombinative nature of viruses simply precludes the possibility of a ` true ' phylogenetic taxonomy. Far from being an incidental process best ignored when considering virus relationships ...

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by anakovacevic
Sat Jun 12, 2010 8:28 pm
 
Forum: Cell Biology
Topic: Recombination in RNA viruses,Ruzic,Kovac
Replies: 2
Views: 24685

Re: Generation of DNA nucleotides

... the appropriate nt molecule? I'm aware of the four "natural forces". Are there additional forces at play here? The answer seems to preclude any other proteins, since this part of DNA replication works in PCR where known objects are included. ps. to Rania, Thanks for your reply, ...

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by gs99
Tue Jan 12, 2010 5:01 pm
 
Forum: Molecular Biology
Topic: Generation of DNA nucleotides
Replies: 65
Views: 43272
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