Method of analyzing autoradiograph for determining base sequence of nucleic acid

A method of analyzing an autoradiograph of plural resolved rows which are formed by resolving base-specific DNA fragments or base-specific RNA fragments labeled with a radioactive element in one-dimensional direction on a support medium, to determine the base sequence of nucleic acids, which comprises steps of: (1) electrically displaying the autoradiograph as an image on a screen on the basis of digital signals corresponding to said autoradiograph;(2) displaying a read cursor on the screen; and(3) displaying name of base to which a band is assigned on the screen, which is determined by using the read cursor, together with said read cursor. A method of analyzing an autoradiograph which comprises recording and storing pattern information, cursor information and base sequence information, and a method which comprises verifying and/or correcting the determined sequence of bands are also disclosed.