this post was submitted on 15 Mar 2025
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Normally no, since one gonosome comes from each parent: The mother (XX) and the father (XY).
If somehow a series of unfortunate meioses occurred to create a zygote that had two Y chromosomes and no X chromosome, the foetus would absolutely not be viable, since the X chromosome contains many essential genes, while the Y chromosome is a truncated version that has less than half the information
There are situations that occur during fertilization, if the egg somehow loses it genetic material, the sperm enters the egg, but it duplicates its own half genome to form a 46 pairs but this is abnormal, because the gene pattering and also epigenetic silencing is different from males and females, so it forms abnormal mass of tissue called a mole; it can be partial or complete, one of the types can become a rare form of cancer
TIL meiosis gone wrong can cause a cumshot to give you cancer.
Thanks, internet stranger!
theres one that have the normal egg with its half of genetic material, but situation where 2 sperm enters at once.