Jalousie window Jalousie window A jalousie window (, ) or louvre window (Australia, New Zealand, Pacific Islands, Southeast Asia, United Kingdom) is a window composed of parallel glass, acrylic, or wooden louvres set in a frame. The louvres are joined onto a track so that they may be tilted open and shut in unison to control airflow, usually by turning a crank. Jalousie is the French word for jealousy. It originated in 18th century France from the Italian word "geloso", which means jealous, or screen, as in to screen something from view. Supposedly because of their slatted louvres, jalousie windows protect the
Bay (horse) black color, represented by the dominant "E" allele, are the two most basic coat color genes. All other colors are produced by the action of additional alleles acting on these two base colors. A bay horse carries both the Extension (E) allele and a suppression gene known as the agouti gene (A).The agouti gene, dominant over the black gene, limits or suppresses the black coloring to black points, allowing the underlying red coat color to come through. Unlike other types of "point" coloring, such as that seen in Siamese cats, the black points characteristic of bay coloring are not produced