Structure X includes a deoxyribose sugar, a phosphate group, and a nitrogenous base. Identify Structure X? A) Sugar- Phosphate Backbone

B)The nucleotide, Cytosine

C) A Complementary Base-Pair

D) A Nucleic Acid

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

yes, because even though a theory has a  lot of evidence to support it, it is not always true