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Relative fitness

Definition

noun

A measure of biological fitness expressed as the ratio of the absolute fitness of an individual (or of a genotype or of a phenotype) and the absolute fitness of a reference individual (or of genotype or of phenotype).


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:

Relative fitness is a standardized absolute fitness. It is expressed as wrel.


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Do chromosomses ever get competitive?

... X-carrying sperm. Even if the Y-mutation reduces the individual's fitness by making his sperm generally less effective, it could make up for this by increasing its own odds relative to the X-chromosome. If the Y-mutation makes my genes have a 10% reduced chance ...

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by wildfunguy
Tue Aug 06, 2013 3:19 am
 
Forum: Cell Biology
Topic: Do chromosomses ever get competitive?
Replies: 9
Views: 6960

Evolution: evidence of change

... to my simple answers =) Thanks in advance. How is adaptation related to fitness? ^Its related to fitness because adaptation enables organisms to ... and behaviours to enable organisms to survive and reproduce. How might relative dating provide innacurate data? ^ Relative dating might provide ...

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by Ayeshaa
Wed Feb 29, 2012 4:30 am
 
Forum: Evolution
Topic: Evolution: evidence of change
Replies: 2
Views: 3340

Re: Peacock

... capacity the ability to make complex value judgements about the future fitness of a potential mate? There are though some clear and interesting ... of different metrics are subconsciously employed by females in gauging relative fitness.) So how likely is it that the peahen, or female dung beetle ...

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by animartco
Mon Jan 23, 2012 12:49 pm
 
Forum: Evolution
Topic: Peacock
Replies: 3
Views: 2152

Peacock

... capacity the ability to make complex value judgements about the future fitness of a potential mate? There are though some clear and interesting ... of different metrics are subconsciously employed by females in gauging relative fitness.) So how likely is it that the peahen, or female dung beetle ...

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by jebus197
Thu Jan 19, 2012 10:14 pm
 
Forum: Evolution
Topic: Peacock
Replies: 3
Views: 2152

Reasons for Skepticism on the Endosymbiosis?

... by virtue of a symbiotic union of prokaryote cells. The nearest living relative to the mitochondrion is thought to be the alpha-proteobacteria Rickettsia ... to change all these membrane components without drastically affecting fitness. The Size and Shape of Mitochondria The argument based on the ...

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by SuperfluousAvatar
Thu Jan 12, 2012 7:43 pm
 
Forum: Cell Biology
Topic: Reasons for Skepticism on the Endosymbiosis?
Replies: 0
Views: 6046
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