100+ Total phenotypic variance PowerPoint (PPT) Presentations, Total phenotypic variance PPTs

Total phenotypic variance - PowerPoint PPT Presentation

Chapter 18

Chapter 18. Quantitative Genetics. 13 - 18 April, 2005. Continuous variation. Overview. In nature, variation in most phenotypic characters is continuous. Such quantitative variation is studied with statistical techniques.

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466 views • 35 slides

Variance components-based linkage analysis

Variance components-based linkage analysis. Rationale of variance components-based linkage analysis. The pattern of phenotypic similarity among pedigree members should be reflected by the pattern of IBD sharing among them at chromosomal loci influencing the trait of interest. .

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313 views • 21 slides

Response to Selection

Response to Selection. Bio 508: Evolution Robert Page Slides Courtesy of Dr. Voss. Heritability. h 2 = V A /V p. Proportion of total phenotypic variance attributable to additive genetic variance . Describes the extent to which offspring resemble their parents.

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841 views • 16 slides

1. Heritability of a trait

1. Heritability of a trait. The most basic question to be asked about a quantitative trait is whether the observed variation in the character is influenced by genes at all. It is important to note that this is not the same as asking whether genes play any role in the character's development.

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321 views • 8 slides

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Total phenotypic variance - PowerPoint PPT Presentation

Chapter 18

Variance components-based linkage analysis

Response to Selection

1. Heritability of a trait