Define Pedigree and Carrier.

Define Pedigree and Carrier.

Pedigree:

A pedigree is a chart used to trace the history of traits in a family. They are used to study heredity patterns.

Parents and offspring are shown in a pedigree. 

Horizontal lines connect parents, and vertical lines connect parents to offspring. Males are represented as boxes; females are shown as circles.


Individuals with a dominant trait have a shaded shape. Unshaded shapes represent recessive individuals.


Carrier:

A carrier is any individual who has inherited the gene for a trait, but does not show that trait physically.




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