What was the purpose of each plate?" XD. 2. 4. PLAY. why is there usually less growth on the +pGLO, amp plates than there is on the -pGLO plate? Select Lab 6 – Molecular Biology / Part I – Transformation in Bacteria 3. How did transformation create better insulin? Bacterial Tranformation Lab - Chapter Nine Virtual Lab Bacterial Transformation Go to classzone.com Click on High School