What is RNA?
RNA is a genetic material (ribonucleic acid) that is generally the messenger between DNA (Deoxyribo nucleic acid) sequencing and protein synthesis.
It is distinct from DNA in that one of the four genetic bases is substituted (Uracil for Thymine) and typical exists as a single strand instead of a double helix (two strands) of DNA — although there are rare DS RNA viruses.
WIKI:
“RNA
Family of large biological molecules
Ribonucleic acid (RNA) is a polymeric molecule essential in various biological roles in coding, decoding, regulation and expression of genes. RNA and DNA are nucleic acids, and, along with lipids, proteins and carbohydrates, constitute the four major macromolecules essential for all known forms of life. Like DNA, RNA is assembled as a chain of nucleotides, but unlike DNA, RNA is found in nature as a single strand folded onto itself, rather than a paired double strand. Cellular organisms use messenger RNA (mRNA) to convey genetic information that directs synthesis of specific proteins. Many viruses encode their genetic information using an RNA genome.”