Abstract: The present invention relates to the identification of yeast strains by way of application of the polymerase chain reaction to amplify nucleic acid sequences characteristic of their TY transposon long terminal repeats. Polymerase chain reaction product is analysed, conveniently by agarose gel electrophoresis, and its nature related to the presence of a particular yeast strain or strain type.

Abstract: An apparatus for forming sheet metal panels is provided. One embodiment generally includes a frame structure, a pair of laterally displaced longitudinal supports slidably interconnected with the frame structure, a forming assembly positioned along both of these supports, a plurality of screw rods extending between and threadably engaged with the supports, an advancing assembly positioned substantially about the central longitudinal axis of the frame, and a cutting assembly. The spacing between the supports is adjusted to accommodate for various widths of the sheet metal by rotating the screw rods which either draws the supports in or forces them out substantially the same distance. Sheet metal is then provided to the advancing assembly which engages and moves the sheet metal through the forming assembly. After the desired contour of the sheet metal is achieved by passing through the laterally displaced portions of the forming assembly, the cutting assembly cuts the sheet metal panel to the desired length.