Nucleic acids (DNA or RNA) are polymers of nucleotides – each nucleotide consists of a pentose sugar, a phosphate group and one of the nitrogenous bases (purines and pyrimidines). Nucleic acids ...
“After the first drawing, things just fell into place. I began drawing on the subways as a hobby on my way to work. I had to ride the subways often and would do a drawing while waiting for a train.