what is a nanodegree
The nanodegree is the brainchild of Udacity, a web-based education provider. The idea of vocational study, a course which targets students for a particular job or trade, is nothing new of course, but the new methods of delivery afforded by online learning environments make such courses much cheaper and easier to do.
A Pedigree results in the presentation of family information in the form of an easily readable chart. Pedigrees use a standardized set of symbols, squares represent males and circles represent females. Pedigree construction is a family history, and details about an earlier generation may be uncertain as memories fade. If the sex of the person is unknown a diamond is used. Someone with the phenotype in question is represented by a filled-in (darker) symbol.