Double Fertilization question

[MitsuMike]

This seems far fetched but I was wondering it and curious to see if it has ever happened.
Example:
Spider female bred to a fire and pastel males. Could an egg get not the fire and pastel gene due to double fertilization from not males?
I have never Read it happening but I was thinking about it and though I would ask to rack some brains. Haha

[Oxylepy]

I have no idea what you mean but I'll try and explain breeding a female to multiple males:

When a female gets sperm from multiple males she can give birth to offspring that are either from one or the other males. So a female who takes fire and pastel on would have a 50% chance that any egg is fertilized by either male (50% fertilized by fire and 50% by pastel). Then within those percentages the same chance of producing offspring is there. In the 50% possibly sired from the fire 50% will get the Fire gene and the other 50% will get Normal, same with the pastel with it's 50%, this leaves you with the following chances that are 25% Pastel, 25% Fire and 50% Normal (from fathers, mother's genes would still need to be calculated in there).

Aside from if you get some crazy paradox you wont get any fire/pastels (and the paradox would be a patchwork of the two, so not a firefly).

Oh, right, Spider female... your offspring chance is then:

12.5% Fire Spider
12.5% Pastel Spider
12.5% Fire
12.5% Pastel
25% Spider
25% Normal

[MitsuMike]

I know percents and what not. I was just curious to see if multiple males can fertizile a single egg. I know on the human body once the sperm as penetrated the outter sack of the females egg the egg them "locks up" and prevents all other sperm from fertilizing the egg. I was just curious if this was the same with snakes or not.

[Oxylepy]

Everything I have seen (and as I described before) points to no, they cannot. However I'm not entirely sure about in the case of paradox animals, but considering how infrequently they are produced I doubt there is enough data, or any data to support or reject that possibility.

If two did penetrate the same egg there is a good chance the egg would come out as a slug (because instead of having a diloid individual you would have a triploid individual which outside of plants is usually lethal). An egg in a human that was fertilized by 2 sperm would be miscarried. The only chances that you end up with multiple sperm going in to produce offspring is when an egg cell splits before when it should, this could cause non-identical twinning inside of one egg.

How chimeras are produced in snakes (which we assume to be what happens in paradox animals) is anyone's guess.