SNP genotyping is the measurement of genetic variations of single nucleotide polymorphisms (SNPs) between members of a species. It is a form of genotyping, which is the measurement of more general genetic variation.
On most plays, the center will snap the ball directly into the quarterback's hands. In a shotgun formation, the center snaps the ball to the quarterback lined up several yards behind him.
The players on the offensive side of the ball include the. 1  Quarterback: The leader of the team. 2  Center: The player who snaps the ball to the quarterback. 3  Running back: A player who runs with the football.  Fullback: A player whoâs responsible for blocking for the running back and also for pass-blocking to protect the quarterback. Fullbacks, who are generally bigger than running backs, are short-yardage runners. Wide receiver: A player who uses his speed and quickness to elude defenders and catch the football.