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Sex of the Baby

Women have XX and men have XY chromosomes. 

1 min to read Nov 7, 2017

The baby gets an X chromosome from its mother and either an X or a Y from its father. If the sperm carries an X then the baby will be a girl (XX); if it contains a Y then a boy will be born (XY). The father’s chromosomes, therefore, determine the sex of the baby.
Male and female chromosomes.