Transcript LEQ: How can a pedigree be used to predict traits?

LEQ: How can a pedigree
be used to predict traits?
9.8
Pedigree

A family tree representing the
occurrence of heritable traits in
parents and offspring across a
number of generations

Circle = female

Square = male
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Marriage line – horizontal line
connect male and female

Children – Vertical line (w/ or w/out
brackets) from marriage line to the
next generation

Generation designated with roman
numerals

Individuals designated with arabic
numbers
I
II
III
Autosomal Dominant
Recessive or Dominant?