fragile X syndrome refers to the pattern of abnormality caused by a defect in the X chromosome resulting in mental retardation, learning problems, and unusual physical characteristics.
Other /More definition:
Fragile X syndrome refers to the abnormality of the X chromosome caused by a defective gene and associated with mild to severe mental retardation, particularly when the defective gene is passed from mother to child. Fragile X syndrome is also spelled Fragile-X syndrome. Please see Fragile-X syndrome

Related Articles

Fragile-X syndrome at psychology-glossary.com■■■■■■■■■■
Fragile-X syndrome: Fragile-X syndrome refers to a chromosomal abnormality in which one area on the . . . Read More
Down syndrome at psychology-glossary.com■■■■■■■■■■
Down syndrome: Down syndrome refers to the type of mental retardation caused by a chromosomal aberration . . . Read More
Fetal alcohol syndrome at psychology-glossary.com■■■■■■■■■■
- Fetal alcohol syndrome: Fetal alcohol syndrome refers to a disorder stemming from extensive prenatal . . . Read More
Fetal alcohol syndrome (FAS) at psychology-glossary.com■■■■■■■■
Fetal alcohol syndrome (FAS): Fetal alcohol syndrome refers to a condition affecting the children of . . . Read More
Fragile X at psychology-glossary.com■■■■■■■
Fragile X: Fragile X refers to an inherited disorder caused by a defective gene on the X-chromosome which . . . Read More
Prader-Willi syndrome at psychology-glossary.com■■■■■■■
Prader-Willi syndrome: Prader-Willi syndrome refers to a complex genetic disorder associated with an . . . Read More
Williams syndrome (WS) at psychology-glossary.com■■■■■■■
- Williams syndrome (WS) : Williams syndrome (WS) refers to a neurodevelopmental disorder characterized . . . Read More
Gene at psychology-glossary.com■■■■■■
gene: gene refers to long deoxyribonucleic acid (DNA) molecule, the basic physical unit of heredity that . . . Read More
Angelman Syndrome at psychology-glossary.com■■■■■■
Angelman Syndrome: Angelman Syndrome refers to a Genetic disorder associated with an abnormality of . . . Read More
Amniocentesis at psychology-glossary.com■■■■■■
Amniocentesis: Amniocentesis refer to the extraction of fluid from the amniotic sac in order to test . . . Read More