Answer:
Nucleic acid
Explanation:
RNA is a kind of nucleic acid. Nucleic acids are just like user manuals for cells, carrying important information about life. RNA has single strands and consists of nucleotides as building blocks. It contributes to protein synthesis, and cell regulation among other cellular activities. The base uracil replaces thymine in DNA but not RNA. There are many varieties of RNA having different functions such as carrying genetic information (RNA), constructing proteins (RNA), and participating in the synthesis of proteins (RNA). Simply put, RNA is an essential molecule that allows cells to work properly.
