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Practice problem

Pedigree — Definition & Charts

By Sylvia Freeman
This image shows a pedigree chart. In the first generation the father is affected and the mother is unaffected. They have four children; three girls and one boy. In this next generation two of the daughters are affected and the other two children are not. The second generation has children. One affected daughter had children with an unaffected man. Her son and daughter are affected and her other daughter is not. The other affected daughter has one unaffected son with an unaffected man. The other children who are unaffected marry and have unaffected children.

Based on this pedigree chart, what pattern of inheritance does the pink trait show?

Choose one answer

Type a concept, like “slope” or “photosynthesis”.

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