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A gene (def) is a segment of DNA that codes for a functional product (mRNA, tRNA, or rRNA). Since the vast majority of genes are transcribed into mRNA and mRNA is subsequently translated into polypeptides or proteins, most genes code for protein synthesis. gene (def) is a segment of DNA that codes for a functional product (mRNA, tRNA, or rRNA). Since the vast majority of genes are transcribed into mRNA and mRNA is subsequently translated into polypeptides or proteins, most genes code for protein synthesis.
DNA that is required for production of. functional product ; mRNA , polypeptide , tRNA, rRNA. â¢ The sequence of gene consists of : â¢ Exons :coding sequence ,transcribed and. translated .Coding for the amino acids in the. polypeptide chain .