Let’s say you have two sperm cells with an X-chromosome, and one egg from the mother. If one of the sperm cells penetrates the egg it creates a baby, but if the other penetrates the egg, does it create the exact same baby, or is there a slight variation? Meaning will they e.g. look exactly the same or look a little bit different?
In: Biology
Not just different sperm, but even the exact same sperm cell and egg cell, if given multiple chances, would never create the exact same baby.
Humans have 23 sets of chromosomes, and the sperm from the father carries one randomly selected from each set.
That gives the sperm over eight million possible chromosome selections.
You can’t get “two matching sperm cells”. If you get two sperm cells from the same man and they are both X, you don’t have any idea the state of the other 22 chromosomes. It’s 2^22 different options, and actually it’s worse because there are other genetic process that add more randomness.
The only way to get an identical baby is to make a clone, and that’s a super-unethical thing to do.
No. There are 23 pairs of chromosomes and to have the same DNA, all 23 would have to match.
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