Okay, stay with me here...
DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
Yeah, you might have to reread that a few times, but DNA isn’t an easy topic. It is very complex. I hope this helps!
~Brooke❤️
