PROBAND (German. Proband) — the individual, for to-rogo make a family tree for the purpose of definition of a mode of inheritance of the studied sign. Brothers and sisters P. are called sibsa.
The family tree is made for establishment of patterns of hereditary transfer normal and patol. signs (see. Genealogical method ). The method of drawing up and the analysis of family trees is one of the main methods used in to genetics of the person (see).
See also Medical genetics .