Tracking Family History

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Presentation transcript:

Tracking Family History Pedigrees Tracking Family History

Tracking Family History Pedigrees Tracking Family History http://www.alicesfamilytree.com/images/alice_family_tree.jpg

Pedigrees A chart that shows multiple family generations and relationships to track the inheritance of genetic traits.

Pedigrees Can be used to determine genotypes of family members. Can be used to help predict probability of future generations expressing certain traits. Important tool for genetic counselors http://www.uchsc.edu/gs/gs/genc/images/meeting.gif

Pedigrees I 1 2 II 1 2 3 4 5 6 7 8 III 1 2 3 4 5 6 7 8 9 Pedigree 1: An idealized pedigree of a family with hypercholesterolemia, an autosomal dominant disease where the heterozygote has a reduced number of functional low density lipoprotein receptors.

Pedigrees

Pedigrees

http://www.bplonline.org/sou/images/newtree.jpg