0 0 votes Assertion [a]: Gram negative bacteria show staining with saffranin. Reason [r]: Gram negative bacteria have an outer membrane with lipopolysaccharides. Both [a] and [r] are true and [r] is the correct reason for [a]. Both [a] and [r] are true but [r] is not the correct reason for [a]. Both [a] and [r] are false. [a] is true but [r] is false. Microbiology gate2017 microbiology + – Milicevic3306 7.9k points answer comment Share Follow 0 reply Please log in or register to add a comment.