Possibly influenced by Danish grim (âsoot, grimeâ), Old Dutch grijmsel, Middle Dutch grime, Middle Low German greme (âdirtâ). Dirt, grease, soot, etc. that is ingrained and difficult to remove.
messenger RNA. a molecule of RNA that is synthesized in the nucleus from a DNA template and then enters the cytoplasm, where its genetic code specifies the amino acid sequence for protein synthesis.
mRNA, abbreviation for messenger RNA. An RNA (ribonucleic acid) molecule which has coding regions and translation signals derived from a gene, carries the reverse template message from DNA, and is required for protein synthesis.mRNA is a nucleic acid intermediate that specifies the amino acid sequence of a polypeptide during translation.n RNA (ribonucleic acid) molecule which has coding regions and translation signals derived from a gene, carries the reverse template message from DNA, and is required for protein synthesis. mRNA is a nucleic acid intermediate that specifies the amino acid sequence of a polypeptide during translation.