Abstract: An inexpensive manual reader for transcription of DNA sequence information from autoradiograms in computer data files is comprised of a gel code reader, electronic interface in software driven computer which provides full input and screening capability as well as storage and retrieval of DNA sequence data in predetermined DNA data base formats. The gel code reader comprises a linear optical magnifier and a thumb activated encoder. The electronic interface converts the data entered through the gel code reader into a plurality of computer compatible formats. The software driven computer then provides interactive voice synthesized editing and DNA data base storage.