Is a 1950 ford sedan battery a positive or a negative ground? Why are gram-positive bacteria purple in colour while gram negative are red? Gram-positive bacteria have a thick mesh-like cell wall which is  made up of peptidoglycan (50-90% of cell wall), which stains  purple.
If you talk about best schools in delhi ncr â Shri Ram School and DPS schools chains dominate top rankings. However Amity School is also considered in top schools. Being from Gurgaon and an alumni of DPS SECTOR 45 I can say DPS Sector 45, Sushant Lok are still the best schools in gurgaon particularity.
The 2010 Winledon Championships Ballboys and Ballgirls were chosen from the Clubs junior programme, the Wimbledon Junior Tennis Initiative and the following schools The Beaconâ¦ School, Banstead Bishopsford Community School, Morden Bishopsford Community School, Morden Glyn Technology School, Ewell Graveney School, Wandsworth Hall School, Wimbledon ...