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Aberration

Aberration

1. (Science: ophthalmology) Any error that results in image degradation. Such errors may be chromatic, spherical, astigmatic chromatic, distortion, or curvature of field: and can result from design or execution, or both.

2. (Science: physics) failure of an optical or electron-optical lens to produce exact geometrical (and chromatic) correspondence between an object and its image. In a video camera tube or cathode-ray tube, aberrations are when the (electrostatic or electromagnetic) lens does not bring the electron beam to sharply focused points uniformly on the target or screen, or to correct geometrical positions, as the beam is deflected.

3. (Science: zoology) a term which, if used to denote a number of individuals within a species, unequivocally signifies infrasubspecific rank.

See: aberration, chromatic, aberration, spherical.


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Re: Re:

... repairable" and "Lethal" Mutations. 6 finger mutation ( http://en.wikipedia.org/wiki/Polydactyly ) or chromosomal aberration called Polydactyly. In the process of speciation the mutations or variations are favoured if it suits the environment, else mostly these ...

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by christianstrategies
Tue Feb 07, 2012 7:10 pm
 
Forum: Evolution
Topic: Any SOLID arguments against evolution?
Replies: 309
Views: 544187

Re: Re:

... repairable" and "Lethal" Mutations. 6 finger mutation ( http://en.wikipedia.org/wiki/Polydactyly ) or chromosomal aberration called Polydactyly. In the process of speciation the mutations or variations are favoured if it suits the environment, else mostly these ...

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by sachin
Tue Feb 07, 2012 4:08 am
 
Forum: Evolution
Topic: Any SOLID arguments against evolution?
Replies: 309
Views: 544187

Biologist vs. Physician.

... new experiments. Induction and deduction are important. You'll fail a lot and a lot of work maybe be performed just so you can find some minor aberration that has not been explained before.

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by mith
Tue Jun 29, 2010 7:27 pm
 
Forum: General Discussion
Topic: Biologist vs. Physician.
Replies: 4
Views: 6558

Philadelphia's syndrome

Hi everybodies, I have a small doubt on this disease...Someone could answer me if is it possible to discover this chromosomal aberration from a simple karyotype? thank you very much Paolo

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by paolino
Fri Jan 27, 2006 1:01 pm
 
Forum: Genetics
Topic: Philadelphia's syndrome
Replies: 1
Views: 6957


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