Simple dichasium (biparous)

A central axis ends in a terminal flower, further growth is produced by two lateral buds. 

Ex: Bougainvillaea, Jasmine, Teak, Mirabilis.

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#Id: 9179

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Fitness- Average number of offspring produced by a genotype and divide it by the mean number of offspring produced by the most prolific genotype

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#Id: 9180

#XL - T Zoology

Average fitness

In a species, only 1 of every 1000 seeds survives to reproductive age, and that those that survive produce an average of 3000 seeds. 

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#Id: 9181

#XL - T Zoology

TLS Online TPP Program

#Id: 9182

#XL - T Zoology

Selection coefficient

A related variable is the selection coefficient (s), which is the relative intensity of selection against a  genotype

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#Id: 9183

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The selection gradient measures the strength of directional selection acting on a quantitative trait.

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#Id: 9184

#XL - T Zoology