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.
DPS Raipur Admissions. The admission process for Delhi Public School (DPS) starts every year in the month of May and School starts in July. For admissions to Delhi Public School (DPS) School, parents should do following steps: â¢ Schedule appointment with admissions office of the School.