What four things all forms of RNA have in common?

  The four things of all forms of RNA that have in common is that RNA shares three bases which is shared with DNA.

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

i wish i could with all of them i can barley see the first one so here's the answer to the first one b