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.
Politics. The 2016 election could come down to just seven swing states, or virtually the same Electoral College map from the last presidential election, says analyst Larry Sabato, but that doesn't mean the Democratic Party already has a clear advantage going into the race. Larry Sabato, swing states, Electoral College.