Genetic mutations causing the malfunction or absence of one or more of the regulatory proteins at cell cycle checkpoints can result in the "molecular switch" being turned permanently on, permitting uncontrolled multiplication of the cell, leading to carcinogenesis, or tumor development.
Dead rows focus on a person's back muscles. They can be done using either an underhand or overhand grip and usually with a barbell. It can be done using dubbells, though.
