What of the following happens first? A) Introns are edited out of premature RNA
B) RNA polymerase reaches a terminator region
C) Nucleotides are covalently linked together
D) RNA polymerase binds to a promoter region of DNA

A

Explanation:

A because the introns are edited then linked together by nucleotides

answer: "circumcision is a common procedure in which the skin covering the tip of the penis is surgically removed."

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