MCQ PracticeThe pyrimidines are single ring compounds with nitrogen in which positions of a 6-membered benzene ring?Subject: BiologyTopic: Genetics And EvolutionA3' and 4'B4' and 6'C1' and 6'D1' and 3'Correct Answer: DPractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the