Golden Earring were by now a different band again, producing slick pop-rock that was perfectly placed to capitalise on both the rise of AOR and the birth of MTV. The usual explanation for Twilight Zone's success is that its stylish, cinematic promo clip became a staple of the young music network, and that's true.
Pyrimidine: A nitrogen containing, single ring compound that occurs in nucleic acids. In DNA molecules, the pyrimidines are cytosine and thymine. Radioactive phosphorus (32P): radioactive isotope of 31P, an element found in DNA molecules.
Purines versus Pyrimidines comparison chart; Purines Pyrimidines; Introduction (from Wikipedia) A purine is a heterocyclic aromatic organic compound, consisting of a pyrimidine ring fused to an imidazole ring. Pyrimidine is a heterocyclic aromatic organic compound similar to benzene and pyridine, containing two nitrogen atoms at positions 1 and 3 of the six-member ring. It is isomeric with two other forms of diazine.