Question

What do two lines on a pedigree mean?

Answer 1

Pedigree analysis:

1. It is a chart that represents a family tree and displays the members of the family that are affected by a certain genetic trait.
2. Pedigree analysis is useful to determine if the mode of inheritance is recessive, dominant, partial dominant, autosomal, mitochondrial, or sex-linked.
3. More so, it is helpful in determining the probability of an individual or offspring being affected in the given cross.
4. Two lines on a pedigree represent mating between related individuals, who share the common ancestor, i.e. consanguineous mating.