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Lesson 26
Pedigrees and Mutations
| Term | Definition |
|---|---|
| Pedigree | written graphical records of ancestry. A family tree and genealogy are examples |
| Mutation | a mistake, defect, or change in the genetic code, they can be negative, positive, or neutral |
| Gene Mutations | changes in the nucleotides of DNA that can cause genetic defects in the offspring of organisms |
| Chromosomal Mutations | are defects in the number or structure of chromosomes within a cell |