A pick-up device for a pantograph comprising two rubbing strips connected together by at least one cross-member connected to and articulated on a stabilizing link on the pantograph. The apparatus receives an input from the user and other data. Preferably, the divider members are slidable along slots formed in the sidewall of the rear cargo area and can be selectively locked into the desired position. The closure body and sealing cap have sealing elements that provide a complete peripheral seal between the sealing cap and the closure body when in the closed position. The improvement is the fusion of a sequence-non-specific nucleic-acid-binding domain to the enzyme in a manner that enhances the processivity of the polymerase.