Pedigree. Here is a pedigree depicting X-linked recessive inheritance. These traits are often passed from a carrier mother to an affected son. X-linked traits are never passed from father to son.
Swing state definition, a state of the U.S. in which the Democratic and Republican candidates both have a good chance of winning and that is considered key to the outcome of a presidential election: the swing states of Ohio and Indiana. See more.
The 9 swing states of 2012 By Chris Cillizza By Chris Cillizza April 16, 2012 Our favorite part of the general election campaign is fiddling with the electoral map to puzzle out the paths to 270 electoral votes for each of the candidates.