What is the difference between mRNA, rRNA and tRNA?

They differ in the size of the molecules and functions.
Informational RNA transfers information on the primary structure of the protein from the nucleus to the cytoplasm, thus determining the synthesis of various proteins. Consists of 300-30000 nucleotides.
Transport RNA transfers activated amino acids to ribosomes during protein biosynthesis; it consists of 76-85 nucleotides.
Ribosomal RNA determines the structure of ribosomes, consists of 3000-5000 nucleotides.

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