Human cells (aside from our sperm and eggs) have DNA from both parents, so they are: Question 2 options:

Haploid, 1n

Diploid, 2n

Haploid, 2n

Diploid, 1n

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

looks like the answer is     c     to me!