What is a surname project?

A Surname Project traces members of a family that share a common surname. Surnames are passed down from father to son like the Y-chromosome. Females do not carry their father’s Y-DNA and most acquire their father's surname or a new surname by way of marriage, so the tested individual must be a male that wants to check his direct paternal line with a Y-DNA12, Y-DNA25, Y-DNA37, or Y-DNA67 marker test. Females who would like to check their direct paternal line can have a male relative with this surname order a Y-DNA test.