Abstract: The present invention relates to compositions and methods for the detection and characterization of nucleic acid sequences and variations in nucleic acid sequences present in multiple genomes. In particular, the present invention provides microarrays possessing two or more whole genomes and methods of making and using the same to detect the presence or absence of target sequences in the plurality of genomes.

Abstract: A spring metal rod is bent in the general shape of an elongated U having opposed concave curves in the sides of the U-shape and having outwardly inclined sides with opposed inwardly bent end bars at the upper portion of the U-shape. The distance between the concave curves in the sides of the U-shape and the closed end of the U-shape is great enough to permit the closed end of the U-shape to be grasped in the hand. The opposed concave sides are used to grip the paint roller while the paint remover is moved parallel to the axis of the roller to squeeze paint out of the roller. The opposed end bars are used to grip the bristles of the paint brush while the paint remover is moved longitudinally with respect to the brush to squeeze paint out of the bristles.