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.
* North Carolina: Of our nine swing states, Obamaâs winning margin was narrowest in the Tar Heel State. (He won by .4 percentage points.) The Obama team clearly signaled that they believe they can win again in 2012 by putting the Democratic National Convention in Charlotte.