In August 2015, Morris self-released five songs as a self-titled extended play, Maren Morris, on Spotify. The songs garnered 2.5 million streams on Spotify in a month, with three songs appearing in Spotify's US and Global Viral 50 chart.
Differential Staining. Gram stain technique is a differential staining technique, which separates bacteria into two groups (discussed in earlier chapters), Gram-positive bacteria and Gram-negative bacteria. Another differential staining technique is acid-fast technique which differentiates species of Mycobacterium from other bacteria.
Gram stain permits the separation of all bacteria into two large groups, those. which retain the primary dye (gram -positive) and those that take the color of the. counterstain (gram -negative). The primary dye is crystal v iolet and the secondary. dye is usually either safranin O or basic fuchsin.