The number of which base is equal to the number of thymine in a dna molecule?
guanine
adenine
cytosine
none of the above

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

answer: the answer is b

we would need to see the picture to answer it