AP BIOLOGY

Detailed explanation-1: -A diagram of family history that uses standardized symbols. A pedigree shows relationships between family members and indicates which individuals have certain genetic pathogenic variants, traits, and diseases within a family as well as vital status.

Detailed explanation-2: -Definition. A pedigree, as related to genetics, is a chart that diagrams the inheritance of a trait or health condition through generations of a family.

Detailed explanation-3: -Draw any siblings in birth order from left (oldest) to right (youngest). Siblings are connected by a horizontal line above the symbols, with vertical lines connecting the symbols to the horizontal line. Leave space to add any partners and children. Add aunts, uncles, grandparents in the same manner.

Detailed explanation-4: -Pedigree analysis is done to determine if the mode of inheritance is recessive, dominant, partial dominant, autosomal, mitochondrial or sex-linked. Moreover, it also determines the probability of an individual or offspring being affected in the given cross.