如果说常染色体病是以智力低下、多发畸形,甚至患儿早夭为特点的话。那么性染色体病对人类的危害则是以不育症及两性畸形为特征。先天性睾丸发育不全这种病又叫克氏综合症,或原发性小睾症,病因是多了一条X染色体。病人的特点是身材高大,小睾丸、男性不育及性畸 If the autosomal disease is characterized by mental retardation, multiple deformities, and even premature children with the words. So the risk of sex chromosome disease to humans is based on infertility and hermaphroditism. Congenital testicular hypoplasia This disease is also called Klinefelter’s syndrome, or primary small testis, the cause is more than one X chromosome. Patients are characterized by tall, small testicles, male infertility and sexual abnormalities