The below mentioned article provides a diagram of DNA strand. (a) DNA is made up of two polynucleotide chains. The backbone is constituted by sugar-phosphate, while the nitrogenous bases project inwards. (b) The two chains have anti-parallel polarity. Therefore, when one chain has 3′ → 5’polarity, the other chain has 5′ → 3′ polarity. (c) […]