胎儿性别的预测,是实行计划生育及临床医学中防治遗传性疾病的有效措施之一。许多父母总希望能预知自己即将出生的孩子是男是女。多年来,国内外的学者试图从各方面来解决这个问题,直到1949年英国学者M.L.Barr在雌猫的神经细胞核内发现了性染色质,并发表于英国 Fetal gender predictions, is the implementation of family planning and clinical medicine in the prevention and treatment of genetic diseases, one of the effective measures. Many parents always want to predict that their immediate child is male or female. Over the years, scholars both at home and abroad have tried to solve this problem in all aspects until the British scholar M.L.Barr discovered sexual chromatin in the nucleus of female cats in 1949 and published it in the UK