One of the primary functions of rna molecules is to

The primary function of the RNA molecule is to carrying information from the genes of amino acid sequence to where proteins are present on the ribosomes in the cytoplasm of the cell.

RNA is known as Ribonucleic acid and it is a single stranded biopolymer molecule. Most common known RNAase are:

1) mRNA (messenger RNA): In the process of protein synthesis mRNA carries genetic code present in DNA which present in nucleus to the ribosomes.

2) rRNA (ribosomal RNA): Ribosome made up of rRNA and Protein. rRNA encodes the ribosome protein subunits and are synthesized in the nucleolus.

3) tRNA (transfer RNA): tRNA contains fewer nucleotides it helps to bring specified amino acids to the Ribosome which is present in the cytoplasm where they are present to synthesize the Proteins.