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 setter is to volleyball what the quarterback is to football. This volleyball position is often the most sought after. They are running the show and calling out the plays and running the offense for the team. It is their job to make sure the ball is where it needs to be so that a hitter can put it away.