Pedigrees Exam Study Guide | 100% Correct
Answers | Verified | Latest 2024 Version
What is a Pedigree?
A graphic representation of an individual's family tree that can show patterns of inheritance
Sex-linked, Autosomal Dominant, Autosomal Recessive
What are the symbols on a Pedigree and what do they mean?
Square - Male
Circle - Female
Shaded in = affected
Left blank = unaffected
Half shaded = carrier
What are the 3 types and what do they mean?
Sex Linked: Carrier females or only males.
Autosomal Recessive: Skips a generation.
Autosomal Dominant: Appears in every generation.
What does a Horizontal Line connecting a SQUARE to a CIRCLE mean?
It means the male and female are mating.
What do Vertical Lines represent?
They connect the parents to their offspring.
What do the rows of a pedigree categorize?
Generations
