1. PEDIGREES

2. Pedigrees
A pedigree chart is a diagram that shows family inheritance of a particular trait.

3. Male versus Female Males are Square (just kidding ;)
Represented by squares
Females are represented by circles

4. First comes love, then comes Marriage…
A horizontal line connecting a male and female represents a marriage

5. Kiddies
A vertical line and bracket connect the parents to their children
One child multiple children

6. Shady characters
A shaded square or circle indicates a person that possesses that trait
A square or circle that is not shaded indicated the person does not have the trait being studied

7. Labeling In order to read a Pedigree, two numbering rules apply
Generation- which is shown with Roman Numerals
Individuals- which is shown with a number
These numbers can be used to identify individuals on the pedigree. For Example, look at the pedigree and pick out: II-5

8. TRY IT
Dave had 3 children with Martha. Sarah is 5, Doris is 3 and Daniel is 2. Martha, Doris and Daniel have blue eyes
Make the pedigree for blue eyes
Check your answer on the next slide

9. Dave had 3 children with Martha. Sarah is 5, Doris is 3 and Daniel is 2. Martha, Doris and Daniel have blue eyes I
Martha Dave II
Sarah Doris Daniel