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The Molecular Biology of Gene Function
The Molecular Biology of Gene Function

... to lack of regulatory controls (eg Lr34) OR less pleiotropy due to lack of pathway/function in new species (eg in native species affects 10 pathways but in new species only one is present). In general a gene that has multiple effects also has multiple controls – more closely related more likely to h ...
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Hearing for those who have lost it”
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Genotype - Net Start Class

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One Hundred Years of Solitude Macondo
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Genetic Epidemiology of High Blood Pressure in Chinese
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Chapter 5 – Genetic Contributions to the Development of Obesity

... 1. Some investigators want to understand the evolutionary basis of our current population distribution of adiposity (8-12) and the “genetic architecture” of the trait at present. A second reason to study the genetics of obesity is to identify genes that can be used as prognostic factors to indicate ...
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PPT File
PPT File

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< 1 ... 1722 1723 1724 1725 1726 1727 1728 1729 1730 ... 1937 >

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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