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.
Report Abuse. 1  Ib Scores. 2  This Site Might Help You. 3  I would say 6 and 7 are good scores.  1, 2, and 3 are failing grades. 4 is passing (compare to a 3 on 1  AP). As far as an individual subject is concerned, 5+ is considered to be good.  yeah! 5 in SL and 4 in HL subjects are a pass.. and u can even get 42/42 allover..