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 swing states of Ohio, Connecticut, Indiana, New Jersey and New York were key to the outcome of the 1888 election. Likewise, Illinois and Texas were key to the outcome of the 1960 election.