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  2. Population bottleneck - Wikipedia

    en.wikipedia.org/wiki/Population_bottleneck

    Population bottleneck. A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population due to environmental events such as famines, earthquakes, floods, fires, disease, and droughts; or human activities such as genocide, speciocide, widespread violence or intentional culling. Such events can reduce the variation ...

  3. Consanguinity - Wikipedia

    en.wikipedia.org/wiki/Consanguinity

    In clinical genetics, consanguinity is defined as a union between two individuals who are related as second cousins or closer, with the inbreeding coefficient (F) equal or higher than 0.0156, where (F) represents the proportion of genetic loci at which the child of a consanguineous couple might inherit identical gene copies from both parents. [24]

  4. Rosy-faced lovebird colour genetics - Wikipedia

    en.wikipedia.org/wiki/Rosy-faced_Lovebird_colour...

    A Whitefaced Blue (Turquoise) female. The science of rosy-faced lovebird colour genetics deals with the heredity of colour variation in the feathers of the species known as Agapornis roseicollis, commonly known as the rosy-faced lovebird or peach-faced lovebird. Rosy-faced lovebirds have the deepest range of mutations available of all the ...

  5. Coefficient of relationship - Wikipedia

    en.wikipedia.org/wiki/Coefficient_of_relationship

    The coefficient of relationship is a measure of the degree of consanguinity (or biological relationship) between two individuals. The term coefficient of relationship was defined by Sewall Wright in 1922, and was derived from his definition of the coefficient of inbreeding of 1921. The measure is most commonly used in genetics and genealogy.

  6. Punnett square - Wikipedia

    en.wikipedia.org/wiki/Punnett_square

    The Punnett square is a visual representation of Mendelian inheritance, a fundamental concept in genetics discovered by Gregor Mendel. [10] For multiple traits, using the "forked-line method" is typically much easier than the Punnett square. Phenotypes may be predicted with at least better-than-chance accuracy using a Punnett square, but the ...

  7. Large for gestational age - Wikipedia

    en.wikipedia.org/wiki/Large_for_gestational_age

    Large for gestational age (LGA) is a term used to describe infants that are born with an abnormally high weight, specifically in the 90th percentile or above, compared to other babies of the same developmental age. [1][2][3] Macrosomia is a similar term that describes excessive birth weight, but refers to an absolute measurement, regardless of ...

  8. Watterson estimator - Wikipedia

    en.wikipedia.org/wiki/Watterson_estimator

    Watterson estimator. In population genetics, the Watterson estimator is a method for describing the genetic diversity in a population. It was developed by Margaret Wu and G. A. Watterson in the 1970s. [1][2] It is estimated by counting the number of polymorphic sites. It is a measure of the "population mutation rate" (the product of the ...

  9. Paternity Index - Wikipedia

    en.wikipedia.org/wiki/Paternity_Index

    In paternity testing, Paternity Index (PI) is a calculated value generated for a single genetic marker or locus (chromosomal location or site of DNA sequence of interest) and is associated with the statistical strength or weight of that locus in favor of or against parentage given the phenotypes of the tested participants and the inheritance scenario.