But how is the functionality of the lacZ gene determined
{"Image DocumentName": "But how is the functionality of the lacZ gene determined?", "Image ImageDescription": "All bacterial colonies growing on the plate had to have picked up the vector and its ampR gene. But how to differentiate between the colonies that have a circularized vector from those with a hybrid vector? Well, this is where the lacZ gene comes into play. In the hybrid vector, the chromosomal DNA inserts into the lacZ gene, thereby disrupting it. By comparison, the recircularized vector has a functional lacZ gene. But how is the functionality of the lacZ gene determined? Copyright \u00a9The McGraw-Hill Companies, Inc. Permission required for reproduction or display.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}