During normal cell metabolism, RNA is constantly being made and broken down. The purine and pyrimidine residues are reused by several salvage pathways to make more genetic material. Purine is salvaged in the form of the corresponding nucleotide, whereas pyrimidine is salvaged as the nucleoside.
-Richard J. Roberts
Select a background
More quotes by Richard J. Roberts
Popular Authors
A curated listing of popular authors.