PreetikaAggarwal1

dinucleotide bonds in dna pyrimidines purines nitrogenous bases nucleoside nucleotide b-dna types of dna dna atgc chargaffs rule salient features of dna watson and crick model dna structure molecular basis of inheritance most important neet neet class 12 molecular oscillatory motion translatory motion uniform motion science class 9 physics periodic motion rectilinear motion circular motion types of motion motion