Pedigree chart

A pedigree chart is a diagram that shows the occurrence and appearance or phenotypes of a particular gene or organism and its ancestors from one generation to the next, most commonly humans, show dogs, and race horses.

The word pedigree is a corruption of the French "pied de grue" or crane's foot, 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.

Properties

A Pedigree results in the presentation of family information in the form of an easily readable chart. Pedigrees use a standardized set of symbols, squares represent males and circles represent females. Pedigree construction is a family history, and details about an earlier generation may be uncertain as memories fade. If the sex of the person is unknown a diamond is used. Someone with the phenotype in question is represented by a filled-in (darker) symbol. Heterozygotes, when identifiable, are indicated by a shade dot inside a symbol or a half-filled symbol.

Podcasts:

PLAYLIST TIME:

Latest News for: pedigree chart

Inquiring minds will love April at Thompson Free Library

Bangor Daily News 24 Mar 2025
... your ancestors were, how to go about finding them, and what do some of the terms such as “once removed”, pedigree charts, or vital records mean? Join Nancy Battick on Thursday, April 17 at 1.30 p.m.
  • 1
×