NTA-NET (UGC-NET) Anthropology (07) History and Development-Pedigree Study Material (Page 1 of 1)

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History and Development, Pedigree, Pedigree Chart of Widow՚s Peak

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  • An important technique used by geneticists to study human inheritance is the pedigree.
  • A pedigree is a pictorial representation of a family history, essentially a family tree that outlines the inheritance of one or more characteristics.
  • Males in a pedigree are represented by squares, females by circles.
  • A horizontal line drawn between two symbols representing a man and a woman indicates a mating.
  • Children are connected to their parents by vertical lines extending below the parents.
  • Persons who exhibit the trait of interest are represented by filled circles and squares.
  • Unaffected persons are represented by open circles and square.
  • Each generation in a pedigree is identified by a Roman numeral.

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