Experiment One Conclusion:

Mutant Strain A Does Not Emit Light

Even when cultured to a high population density, the mutant strain A does not produce bioluminescence. Its lack of the receptor molecule has disabled its quorum-sensing ability.

A culture dish showing bioluminescence in a normal strain.
Bioluminescence in normal strain
A divided dish with both sides labeled A. None of the cells on either side display bioluminescence.
No bioluminescence in mutant strain A