Dictionary » V » Variation

Variation

Definition

noun, plural: variations

(1) A difference or deviation (e.g. in structure, form, function) from the recognized norm or standard.

(2) A modification in structure, form or function in an organism, deviating from other organisms of the same species or group.

(3) Mutant; an organism possessing characteristic(s) as a result of mutation.


Supplement

In genetics, variation refers to an individual that possesses characteristics different from the others of the same kind.

Variation can be measured at the individual level, i.e. differences between individual people, or at the population level, i.e. differences between populations living in different regions.


Word origin: Latin variātiōn- (s. of variātiō), equiv. to variāt(us).


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Results from our forum


How can i asses the parasie loading of littorina littoria?

There is too much variation in the parasite loading of gastropods.

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by marineman
Sat Mar 02, 2013 10:27 am
 
Forum: Zoology Discussion
Topic: How can i asses the parasie loading of littorina littoria?
Replies: 7
Views: 365

Re: mutations and dependencies

... If this image is accurate, things that serve "vague functions" (functions with loose requirements) should have more variation because they can vary without losing much utility (usefulness). At this point, I speculated that vague functions actually pave the way for ...

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by wildfunguy
Sun Feb 17, 2013 8:33 pm
 
Forum: Evolution
Topic: mutations and dependencies
Replies: 17
Views: 844

Re:

... probably not result in a viable organism , but screwing with Hox genes in an insect? That can work. My guess would be this is why we see more variation in the number of limbs among arthropods. That's very interesting!!! :D Do you have more information about why it wouldn't produce a viable ...

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by elvex1
Tue Feb 05, 2013 3:20 am
 
Forum: Evolution
Topic: On the number of limbs.
Replies: 7
Views: 528

On the number of limbs.

... would probably not result in a viable organism, but screwing with Hox genes in an insect? That can work. My guess would be this is why we see more variation in the number of limbs among arthropods.

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by Luxorien
Mon Feb 04, 2013 10:46 pm
 
Forum: Evolution
Topic: On the number of limbs.
Replies: 7
Views: 528

Re: PCR

... pair of primers, you target the same two loci in any human (unless the primers are poorly chosen and so there is off-target binding due to allelic variation). So, you prime at the locus of the forward primer target and prime at the locus of the reverse primer target, but the distance between these ...

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by jonmoulton
Tue Jan 29, 2013 4:16 pm
 
Forum: Genetics
Topic: PCR
Replies: 2
Views: 502
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