I mean purely hypothetically, I know the chances of that happening at so small they re likely statistically impossible, but theoretically could those couples produce "identical cousins"?
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answers:
Gray Bold say: No. Genetic recombination is the production of offspring with combinations of traits that differ from those found in either parent. In eukaryotes, genetic recombination during meiosis can lead to a novel set of genetic information that can be passed on from the parents to the offspring.
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MARK say: No, it is not possible. Human reproduction with crossing over and independent assortment means a child does not receive the exact same genotype as their parent. Then there is random fertilisation of the parents' gametes. Every individual is also born with their own mutations. So no it is not going to happen.
In fact we probably do not even need genetics to prevent this from happening. The chance that two male monozygotic twins will meet two female monozygotic twins is going to be low. Every twin I have ever known as done whatever they can to avoid doing the same as their twin. If these four people met I cannot see what you propose happening.
Next, you will be suggesting that they have a joint wedding. Why not have them booking a single hotel room with a large bed and the four of them sharing their wedding night.
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Cal King say: Not likely. That is the same odds of two different pregnancies from one set of parents resulting in identical twins. Each sperm and each egg are different from other sperms and eggs. The odds of two sperms being identical genetically fertilizing too different eggs that are genetically identical is smaller than the odds that you will win 2 pick six lotteries in your life time.
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