For what it's worth, Corey is right. You can have multiple paternities within a clutch, but each egg gets only one daddy. I'm only aware of situations in plants in which a polyploid (meaning more than the customary set of chromosomes, i.e., more than the 2 sets found in snakes or humans for that matter) is viable.

There is NO way a single baby can have genetic material from more than one father.

Ocasionally the are some mistakes in the formation of gametes in which one or more chromosomes is duplicated within a sperm or egg. When joined to the opposite sex cell, you could have three copies of a particular chromosome. In such cases, a condition called trisomy occurs (Down Syndrome in humans is a condition caused by trisomy - chromosome #23 I think). There are several other trisomy conditions in humans, all causing some sort of developmental, reproductive, or mental abnormality.

SO here is a possible explanation for your retics where you get a supertiger from a tiger to normal breeding. Lets say you get a sperm cell with two sets of the particular chromosome containing the tiger gene. The resulting offspring would have "trisomy" for that chromosome (three copies of that particular chromosome).

SO...whereas a normal supert tiger retic would be TT in regards to its alleles for the tiger gene, you could possibly have a TTt individual that would express the supertiger phenotype (look). It may be that there is little or no abnormality, or that any abnormality is small enough to go unnoticed.

This is really the only resonable (albeit a stretch) explanation that I can think of....anybody out there with another?

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