You Are Testing Protein X and Protein Y in a Yeast

Multiple Choice

You are testing protein X and protein Y in a yeast two-hybrid assay that uses lacZ as a reporter gene. Production of a blue product signifies that:

A) protein X interacts with protein Y
B) protein X does not interact with protein Y
C) protein X is required for production of protein Y
D) protein Y is required for production of protein X