Crossword Clue:

One of two in 27 Down Abbr

Answer	Crossword Clue
UTIL	One of two in Monopoly: Abbr.
PROTONS	Particles composed of two up quarks and one down quark
ERA	A one-two-three inning makes it go down

MIN	One of two extremes: Abbr.
UTIL	One of two Monopoly squares: Abbr.
COR	One of two Pauline epistles: Abbr.
COR	One of two N.T. books: Abbr.
MACC	One of two books of the Apocrypha: Abbr.