Egg - sperm contain copy of your genes
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Description: The genes on the chromosomes pair up, too. One of those examples Nadeau found was from the lab of the cancer researcher Roseline Godbout at the University of Alberta. If a defective gene is on the X chromosome, it is called a sex-linked disorder. High Scool Biology Class. In fact, the randomness of fertilization is implicit in the principle of segregation — the first law of genetics going back to Gregor Mendel.
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