Not yet investigated
What we have so far
The protein credited with making queens — and a 2016 rebuttal in Nature could not reproduce it. A rival line of work says the caste is set by what the pollen in worker food WITHHOLDS.
This star is on the map because the show intends to take the question apart properly — the trials, how it is actually tested, whether the thing sold is the thing studied. That work is not done yet, and nothing here should be read as a conclusion. When the investigation is published it will appear on this page.