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.
Neither side holds enough to ensure a win if both parties vote straight. That being the case, swing statesâalso called purple states or battleground statesâhold 85 electoral votes, more than enough to tip the balance in either partyâs favor.