BIOTECHNOLOGY APRIL-2018 PG 1. 15CPBT2A 2. 15CPBT2D 3. 15CPBT4B UG 1. 15CABT4A 2. 15CBT4A 3. 15CBT6A 4. 15CBT6B 5. 15NBT4A 6. 15SBT4A