Reading Family Traits in Pedigrees

Pedigrees are family trees used to track how a trait passes through generations. They help scientists and students see whether a trait is dominant or recessive, whether it is autosomal or sex-linked, what genotypes family members may have, and what phenotypes may appear in future generations. For families with a history of i...

- [Narratore] Per comprendere come i tratti

o le malattie vengano ereditati negli esseri umani,

gli scienziati analizzano gli alberi genealogici,

anche noti come pedigree.

In un tipico pedigree, i quadrati indicano i maschi,

i cerchi le femmine,

e una linea orizzontale tra queste forme

rap...