Blood lineage is a term that refers to the ancestry of an individual and the genetic material passed down from their ancestors. Synonyms for blood line include genealogy, family tree, hereditary line, ancestral line, lineage, and ancestry. These terms are commonly used to refer to a person's biological heritage or the historical roots of a particular family or clan. Blood line can also be used in the context of animal breeding and genetics, where it refers to the pedigree or lineage of a particular animal. Whatever the context, understanding one's blood line plays an important role in understanding one's identity and heritage.