DNA contains genetic instructions for proteins, and RNA helps assemble the proteins, and rNA RNA, or ribonucleic acid, is a constituent of all living cells and many viruses. Given these facts, what helps assemble proteins among the following options:
- h2o
 - Veins and arteries.
 - the body's largest organ
 - calcium
 - ribonucleic acid
 - DNA
 - oxidation reaction
 - Chemical energy


 

     ribonucleic acid    