Migration

Change in the allelic frequencies is the influx of genes from other populations, commonly called migration or gene flow

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#Unit 13. Methods in Biology

Chromatography columns are considered to consist of a number of adjacent zones in each of which there is sufficient space for an analyte to completely equilibrate between the two phases, Each zone is called a theoretical plate (having no N).

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#Unit 13. Methods in Biology

The length of column containing one theoretical plate is referred to as the plate height, H, which has units of length normally in micrometers.

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#Unit 13. Methods in Biology

Therefore, that k is related to the distribution coefficient. Since amount and concentration are related by volume by

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#Id: 2789

#Unit 13. Methods in Biology

The second component is the time the stationary phase retains the analyte, referred to as the adjusted retention time, t’R.

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#Unit 13. Methods in Biology

The ratio VS/VM is referred to as the volumetric phase ratio, b. Hence:

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#Unit 13. Methods in Biology

notSelectivity or separation factor, a, which can also be viewed as simply the relative retention ratio for the two analytes: