A scene segment dividing device which can precisely specify a break segment and an in play segment based on a sports image and can precisely manage a series of offenses in the in play segment as each scene segment. The quick connector fitting connects using fasteners to a lip or groove formed on the casing. The light receiving unit includes a plurality of pixels which are arranged in a two-dimensional array. The fractionation microchannel has at least one cross-sectional dimension equal to or less than 1 mm. Determining the lengths of the primers and any extension products from both reactions will indicate which variant or variants are present in a DNA sample.