Many...



As far as I know, there have already been a couple of clutches produced from Spider to "normal" breedings where the entire clutch has been Spiders. Repeated breedings of the particular Spider(s) involved, however, did not produce whole clutches of Spiders from every breeding.



For example, if a Spider male was bred to some "normal" females and 3 clutches were produced that consisted entirely of Spiders, we might surmise that Spider could be a dominant morph and the Spider male could be a homozygous Spider. If a single subsequent breeding of that Spider male to a "normal" female produced a clutch that was not all Spiders, we could reasonably conclude that this particular Spider male was not a homozygous Spider. Although this particular clutch (not all Spiders) would provide additional information that the male was not a homozygous Spider, it would not in and of itself provide sufficient additional information to conclude whether or not Spiders were dominant.



It's a little like saying that there are no Volkswagen Beetles in the World that are blue...

If we see one blue Volkswagen Beetle, we know that this statement is false...

If we do not see a blue Volkswagen Beetle, we have to keep looking until we have examined every Volkswagen Beetle. Once we have examined every one and found that none are blue, then we can say with certainty that the statement is true.



Some things are proven or disproven by exlusionary methods.

Some things are proven or disproven by inclusionary methods.

Sometimes other methods are needed.

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