through genealogy analysis, Liang Li Zhuren suspect gene grandmother who come from the child. As we all know, women's chromosomes XX, male XY, we will be labeled pathogenic chromosome Xa. Mother of XaX, the parent body for the XY, there are four possible birth of a child: XaX, XX, XaY, XY. For XaX, disease-causing genes will be another normal X compensatory, but not disease carrying performance.
doctor told Guoqing, this is a recessive gene on chromosome abnormality, there may be sick as long as a boy, only daughter to escape the
Jingjing is from Henan, father Guoqing working in Hangzhou. He is the parents in order to 13-year-old brother has been a strong year, height 119.5 cm (about 159 cm age children).
chubby baby fat with a point on the face, wearing pants at the provincial Ministry of Children's Hospital ran the corridor, if not reminded, everyone will put only 91 cm tall as a two year old child Jingjing , but in fact he has 7 years old.
growth hormone deficiency (GHD) is a common cause of short stature. According to the Beijing Union Medical College Hospital, Beijing City on more than 100,000 primary and secondary survey shows that prevalence rate of 1 / 8644,
Jingjing this generation, only the girl is healthy. Then the next generation? Jingjing chromosome XaY, spouse of chromosomal XX, born child can be: XaX, XY, that if a boy is healthy, the girl was carriers.
Liangzhu Ren said, this is a sex-linked genetic disease, you want to get a healthy child, can
Times correspondent Yu Min
birth, and other children as strong, but grow to six months of age than their peers when they feel the child is small, and often cold. In 2006, strong with his father to the provincial children's hospital, was diagnosed with X-linked growth hormone deficiency.
Jingjing is the second child so the couple to the children to do the