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邻居家的林静马上要结婚了,需要到市区妇幼保健院进行婚前检查开始她很不理解,后来经过检查还真的发现男朋友有遗传病家族史,大夫告诉她生育没有问题,只是只能生育女孩而不能生育男孩,经过双方家庭同意,二人还是高兴地结合了。随着医学遗传学研究的迅速发展,人们越来越重视遗传疾病的研究,已发现3000多种与遗传有关的疾病,包括一些重大疾病,其中大约有250种只在男性范围内发病,而女性则没有或很少患病,形成了独特的单性别遗传方式。有哪些常见的遗传疾病可以出现这样的结果,出现这样的结果是什么原因呢? 原来,在人体细胞中有23对染色体,其中1对(2条)是决定性别的性染色体,女性的为XX,男性为XY。染色体上携带着决定人体各种性状的基因
Lin Jing neighborhood neighbors to be married soon, need to go to urban MCH for premarital examination she did not understand, and later checked really found that her boyfriend has a family history of genetic disease, the doctor told her reproductive no problem, only Can give birth to a girl and can not give birth to a boy, after both families agree, two people are still happy to combine. With the rapid development of medical genetics research, people pay more and more attention to the study of genetic diseases. More than 3000 kinds of hereditary diseases have been found, including some major diseases. About 250 of them are only caused by men and women There is no or very little illness, forming a unique single-sex way of inheritance. What are the common genetic diseases can occur such a result, what is the result of such a result? It turned out that there are 23 pairs of chromosomes in human cells, of which 1 (2) is to determine the gender of sex chromosomes, women XX , Male XY. Chromosomes carry genes that determine the body’s various traits