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Fitness

Definition

noun

(1) (biology) A biological condition in which a competing variant is increasing in frequency relative to other competing variants in a population.

(2) A relative measure of reproductive success of an organism in passing its genes to the next generation.

(3) The relative ability of an individual (or population) to survive, reproduce and propagate genes in an environment.

(4) The state or quality of being fit, e.g. physically or mentally; being in shape, good health or well-being.

(5) The capability to perform a function.

(6) The ability of an organism to survive and reproduce in its enviornment.


Supplement

In biology, Darwinian fitness or simply fitness of a biological trait describes how successful an organism has been at passing on its genes. The more likely that an individual is able to survive and live longer to reproduce, the higher is the fitness of that individual.

There are two ways through which fitness can be measured:


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... down their armlet boss The power of your nature influences things to move. Regardless how it requires mammoth concentration, with your psychotic fitness being in the greatest kalendarze firmowe workable condition. If you partake of a humour that cannot obstruct sedative and wanders throughout, ...

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How Does Natural Selection Create Ordered Variation?

... organisms have a lot of off springs the population will be uniform after a while. But most of the time it's different things that can increase the fitness, not only one. And if factors change most of the time they don't change for all individuals of a species - only for a population. So you get ...

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by Tricho
Wed Jan 22, 2014 1:16 am
 
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Re:

... serious proposals to explain the evolution of menopause is the grandmother hypothesis . The central idea is that for older women, the individual fitness benefit from having new children is actually less that the fitness benefit obtained by devoting effort to the raising of the grandchildren. ...

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Re: Beneficial mutations vs harmful

Natural selection; survival to reproduce. Collections of genes (or more accurately a given gene variant) with better fitness, tend to survive to reproduce more often than those without. Basically harmful mutations tend to lower fitness, whereas beneficial mutations tend to increase ...

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by NMLevesque
Fri Nov 22, 2013 6:51 pm
 
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