Mental Retardation

About Down Syndrome

Down Syndrome is a genetic disorder caused by an extra copy of chromosome 21. This chromosomal abnormality affects physical and intellectual development, which can lead to a variety of health problems. People with Down Syndrome experience delays in motor skills, language, and cognitive development. They often have physical characteristics such as low muscle tone, short …

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About Turner Syndrome

Turner Syndrome is a genetic disorder that occurs in females. It is caused by the complete or partial absence of a second sex chromosome, resulting in a chromosomal pattern of 45,X instead of the typical 46,XX or 46,XY. Turner Syndrome affects 1 in 2,500 female births and can cause physical, developmental and psychological issues. The …

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About Fragile X Syndrome

Fragile X Syndrome is a genetic disorder that affects approximately 1 in 4,000 people, and is the most common inherited form of intellectual disability. It is caused by a mutation of the FMR1 gene on the X chromosome. This mutation leads to an abnormal number of repeats of a single nucleotide sequence within the gene, …

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