Re: Can Queens lay only drone eggs?
An unfertilized queen results in what is called a Drone Layer. She is not capable of producing anything but drones. I have not heard of the Diploid egg from an infertile female before. I have seen laying workers attempt to rear a queen from their own eggs though. the result was a drone that simply developed in a queen cell. One of which emerged alive and seemingly perfectly healthy.
Significant Minority vs Insignificant Majority, 20% of causes produce 80% of the effects.