Correct me if im wrong but the eggs are never fertilized til after ovulation (hence releasing the egg) so the homozygous genotype wouldn't be a factor til well after the follicle counting is done.
But lets say for example I had something like happened to me just a few weeks ago. I palpated six follicles, like 100 % sure there were six and come time to lay there was five eggs, no slugs. What happened to number six? Is this possible that it just did not get fertilized and she deficated it out? Or would one suspect there are fraternal twins in one of the eggs? Or is it just possible that a female can reabsorb the follicle within about a week of ovulation? And if thats possible then that kinda pisses away the idea of counting follicles to be able to get a controlled number of possible fatal homozygous spiders vs just females that for some uncontrolled reason absorbs them.