Introduction to Pedigree Analysis

Use this interactive infographic to learn how to interpret basic relationships on a pedigree and better understand how a particular trait or health condition can be inherited across multiple generations in a family.

Topics

  • Arabic numerals
  • biological parents
  • circle
  • condition
  • cystic fibrosis
  • deceased
  • diagonal line
  • diamond
  • Down syndrome
  • family tree
  • female
  • female individual
  • generation
  • genetic counseling
  • genetic counselor
  • genetic family history
  • genetic history
  • hemophilia
  • horizontal line
  • individual
  • inheritance
  • inherited
  • line of descent
  • parents
  • pedigree
  • pregnant
  • relationship
  • Roman numerals
  • male
  • male individual
  • marriage line
  • mating line
  • mode of inheritance
  • offspring
  • shaded shape
  • sibling
  • sibling line
  • sickle cell anemia
  • square
  • trait
  • unborn child
  • unknown sex
  • unshaded shape
  • unspecified sex
  • vertical line
  • with the condition or trait
  • without the condition or trait