the present invention relates to apparatus for measuring the genetic sequence of electrically charged biopolymers by means of hybridization . the measuring apparatus comprises a container that contains a biopolymer and can be removed from the apparatus , and electrodes that apply an electric field to the container and are electrically insulated from the container . when an electric field is applied to the container , suspended biopolymeric molecules are attracted toward the positive electrode , thus increasing the speed of hybridization .