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What maintains genetic variation? - Carol Lee Lab
What maintains genetic variation? - Carol Lee Lab

... Theoretically a function of Ne How great a threat is it? How effective is purging by inbreeding or founder effects in small populations? – alleles with s < 1 / 2 Ne are invisible to selection – Thus mildly deleterious mutations will continue to fix even if strongly deleterious ones are purged ...
Life Sciences Exemplar Paper 1
Life Sciences Exemplar Paper 1

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Gene Maps
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Gene Mapping and Disease Gene Identification
Gene Mapping and Disease Gene Identification

... Linkage analysis is a method that is used to decide if two loci or a loci and a disease gene are linked : 1. Ascertain whether the recombination fraction theta between two loci deviates significantly from 0.5. 2. If theta is different from 0.5, we need to make the best estimate of theta, since this ...
Secondary Activities for DNA Barcoding at the Toronto Zoo Name
Secondary Activities for DNA Barcoding at the Toronto Zoo Name

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Q&amp;A: Evolutionary capacitance Open Access Joanna Masel
Q&A: Evolutionary capacitance Open Access Joanna Masel

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Bio-Tech - AgriLife Extension County Offices
Bio-Tech - AgriLife Extension County Offices

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PopGen1: Introduction to population genetics

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Practical Applications of DNA Technology

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Biology 303 EXAM II 3/14/00 NAME

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Microevolution

Microevolution is the change in allele frequencies that occur over time within a population. This change is due to four different processes: mutation, selection (natural and artificial), gene flow, and genetic drift. This change happens over a relatively short (in evolutionary terms) amount of time compared to the changes termed 'macroevolution' which is where greater differences in the population occur.Population genetics is the branch of biology that provides the mathematical structure for the study of the process of microevolution. Ecological genetics concerns itself with observing microevolution in the wild. Typically, observable instances of evolution are examples of microevolution; for example, bacterial strains that have antibiotic resistance.Microevolution over time leads to speciation or the appearance of novel structure, sometimes classified as macroevolution. Macro and microevolution describe fundamentally identical processes on different scales.
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