The ruling on the field is down at the one-yard line.
It is a Touchdown if any part of the ball is on, above, or behind the opponent’s goal line while legally in possession of an inbounds player, provided it is not a touchback.
The ruling on the field is a catch.
A player who makes a catch may advance the ball. A forward pass is complete (by the offense) or intercepted (by the defense) in the field of play, at the sideline, or in the end zone if a player, who is inbounds:
The ruling on the field is a two-point conversion.
An official shall declare the ball dead and the down ended: