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The word pedigree is a corruption of the Anglo-Norman French pé de grue or "crane's foot", either because the typical lines and split lines (each split leading to different offspring of the one parent line) resemble the thin leg and foot of a crane [3] or because such a mark was used to denote succession in pedigree charts.
An example pedigree chart of the inheritance of a sex-linked disorder. Each child of a mother affected with an X-linked dominant trait has a 50% chance of inheriting the mutation and thus being affected with the disorder.
Example of a family tree. Reading left to right Lucas Grey is the father of three children, the grandfather of five grandchildren and the great-grandfather of three siblings Joseph, John and Laura Wetter. Family tree showing the relationship of each person to the orange person, including cousins and gene share
English: Example of the pedigree of a hereditary, genetic trait being transmitted through (3) generations, doing so in an autosomal dominant fashion Pedigree itself: -A man with a genetic variant (red hexagon) has children with a woman without the genetic variant (white circle)
Endal; a paperback book entitled Endal, [150] published by HarperCollins, was released on 9 February 2009 and went straight to Number 5 in the UK Paperback bestsellers list. Jock of the Bushveld , a Staffordshire bull terrier from South Africa in the 1880s, whose owner wrote a book about their travels together.
Genealogy (from Ancient Greek γενεαλογία (genealogía) 'the making of a pedigree') [2] is the study of families, family history, and the tracing of their lineages. Genealogists use oral interviews, historical records, genetic analysis, and other records to obtain information about a family and to demonstrate kinship and pedigrees of ...
An example of the codominant inheritance of some of the four blood groups. Mendelian traits in humans are human traits that are substantially influenced by Mendelian inheritance . Most – if not all – Mendelian traits are also influenced by other genes, the environment, immune responses, and chance.
An example of a family pedigree displaying an autosomal recessive trait. A pedigree is a diagram showing the ancestral relationships and transmission of genetic traits over several generations in a family. Square symbols are almost always used to represent males, whilst circles are used for females.