A) True
1. Pedigrees are used to trace a common trait or genetic condition within a family.
2. They are visual representations of the inheritance patterns of traits across generations.
3. Pedigree charts use symbols to represent individuals, such as squares for males and circles for females.
4. Lines connecting individuals indicate relationships, like parent-child or sibling relationships.
5. Traits or conditions are indicated using shading or symbols within the chart.
6. Pedigrees help identify inheritance patterns, such as autosomal dominant or recessive, X-linked dominant or recessive, and others.
7. They offer insights into the genetic basis of a particular trait or condition.
8. Researchers use pedigrees to track the presence or absence of traits or conditions across multiple generations within a family.
9. By studying pedigrees, researchers can make inferences about the underlying genetic mechanisms involved in the trait or condition.