Before cell division, the genetic material must
undergo a process called
1 reduction
2 disintegration
3 replication
4 reproduction

Before cell division, the genetic material must  undergo a process called

replication

Explanation:

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products