Maple Review
Wiki
Wiki
Dictionary
Idiom
Character search
Word Link Tree
Chinese Expert
Knowledge Tree
Chinese English
English Chinese
Language Converter
Time Channel
Dynasty
Country
Today in History
Read
Poems
Novel
History
Wiki
Prose
Tourism
Drama
Search
User
Password
Sign in
Register
English
简体
繁體
pīnyīn
My
Picture
My Map
Collections
I remember
Poems
Novel
History
Wiki
Prose
Tourism
Drama
Maple Review
Feedback
About us
Contextual Help
Help
Health
>
x-连锁智力障碍
指一组以智力障碍为主要临床表现的遗传性疾病。x连锁遗传是指一些遗传性症状或疾病的基因位于x染色体上,由于y染色体上缺少同源节段,因此没有相应的等位基因,这些基因将随着x染色体的行为而传递。最近发现此种智力障碍共58种,脆性x染色体综合征是其中之一。