In biology, various symbols were used to enhance understanding of human genetics out of which only xx] and xy] nearly gained a universal acceptance. It is a male parent, because there is xy] inside the parent cell, but it is a female parent, because there is xx] inside the parent cell. Our biologists told us that the chances of conceiving a female child is always homogeneous x/x], likewise the chances of conceiving a male child is always heterogeneous x/y ].This is what constitutes the basic trend in human reproduction.
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