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I. What is a pedigree?

I. What is a pedigree?. A chart that shows how a trait is inherited through a family. II. About Pedigrees. · Circles - ____Females______ ·  Squares - _____Males____ · Shaded - individual is affected with the trait.

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I. What is a pedigree?

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  1. I. What is a pedigree? A chart that shows how a trait is inherited through a family

  2. II. About Pedigrees · Circles - ____Females______ · Squares - _____Males____ ·Shaded - individual is affected with the trait. • Carrier - an individual that carries the allele for a trait but does not express the trait. (half-shaded)

  3. How to read individuals in a pedigree:

  4. Find individual II-4.

  5. The roman numerals show generations… the numbers show the individuals within that generation

  6. Horizontal and Vertical Lines Horizontal Lines mean marriage

  7. Horizontal and Vertical Lines Vertical Lines mean offspring (children)

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