 A pedigree is a diagram representing family lineage and genetic relationships amongst the members

= normal female
= normal male
= carrier female
= carrier male
=unknown sex
= deceased
= affected female
= affected male
= mating
= offspring

 To track and determine inheritance of genetic disorders.
 Useful in determining patterns of inheritance
 Dominant
 Recessive
 Sex Linked
 Etc.

Dominant Recessive

Examples of Pedigrees:
Hemophilia In the Royal Family

 A group of genetic conditions that causes a lack of pigment
 Can effect only the eyes (ocular albinism) or both the eyes and skin (oculocutaneous albinism)
 Most types of albinism are inherited recessively
 Exception is one type of ocular albinism, which is passed on from mothers to their sons (sex linked)
Source: The National Organization for Albinism and Hypopigmentation

Silas “The DaVinci Code”
Ali Newman -Emcee
The Twins “The Matrix Reloaded”
Moby Dick – Herman Melville Tombstone – “Spider Man” Connie Chiu – Model