Question

The two most common genetic causes of intellectual disabilities are _____. Down syndrome and fetal alcohol spectrum disorder Fetal alcohol spectrum disorder and Tay-Sachs disease Down syndrome and fragile X syndrome Prader-Willi syndrome and PKU

Answer 1

Fragile X syndrome is an inherited condition that determines changes in intellectual development and behavior. Although considered to be the second most common cause of genetic disability - the first being Down syndrome -

down syndrome-

Step-by-step explanation:

Answer 2

Down syndrome and fragile X syndrome

Step-by-step explanation:

The two most common genetic causes of intellectual disability are Down syndrome and fragile X syndrome.

Fragile X syndrome is an inherited condition that determines changes in intellectual development and behavior. Although considered to be the second most common cause of genetic disability - the first being Down syndrome - the disease is poorly known, as its findings are only around 30 years old. Unlike Down syndrome which is better known and widespread.