Heredity
Heredity (the adjective is hereditary) is the transfer of characteristics from parent to offspring, either through their genes or through the social institution called inheritance (for example, a title of nobility is passed from individual to individual according to relevant customs and/or laws).
Sociology
The social institution called inheritance. One's bloodline is one's familial ancestry. See also meme.
External links
Look up heredity in Wiktionary, the free dictionary.
I am the one, the only Mr. O