Dna and rna share a number of similarities, but they also differ in certain aspects of their structure. which nitrogenous base is found in rna but is not found in dna?

With any strand of DNA or RNA, there are 4 possibilities for the amino acid that is placed into the "formula" to determine what the cell does. The commonalities between DNA and RNA for amino acids are G, A and C. These are the common abbreviations for the names of amino acids. G stands for guanine, A adenine and C for cytosine. The main difference comes in the 4th amino acid type in both DNA and RNA. In DNA, the 4th amino acid is T, thymine. On the other hand, the 4th amino acid type in RNA is U, uracil.