Explain the structure and function of different types of RNA.

Explanation

mRNA (messenger RNA): Single stranded, carries a copy of intructions for assembling amino acids into proteins. It is very unstable and comprises 5% of total RNA polymer. Prokaryotic mRNA (Polycistronic) carry coding sequences for many polypeptides. eukaryotic mRNA (Monocistronic) contains information for only one polypeptide.
tRNA (transfer RNA): Translates the code from mRNA and transfers amino acids to the ribosome to build proteins. it is highly foled into an elaborate 3D structure and comprises about 15% of total RNA. it is also called as soluble RNA.
rRNA (ribosomal RNA): Single stranded, metabolically stable, makeup the two subunits of ribosomes. it constitues 80% of the total RNA. it is a polymer with varied length from 120-3000 nucleotides and gives ribosomes their shape. genes for rRNA are highly conserved and employed for phylogenetic studies.