Question

A person with Down syndrome has an IQ of ____.
A. 40 to 50
B. 20 to 30
C. 50 to 60
D. None of the above

Answer 1

Hint:
Down syndrome is a genetic disorder in which there is an extra copy of the gene in the 21^st pair of chromosomes. Down syndrome results in cognitive dysfunction and some characteristic features. Even though it is a genetic condition, in most cases it is not inherited. Only translocation of Down syndrome is passed from one generation to the next generation.

Complete step by step answer:
Down syndrome is distinguished by a flat face, wedge-shaped slanting upward eyes, a short neck, small ears, a protruding tongue, short feet and arms, hypotonia or loose joints, and shorter height as children and adults.
Even though people with Down syndrome may look and act alike, each of them has unique capabilities. They may have an IQ in the mild to moderate range and speak slower than normal children.
Most people with Down syndrome have mild (IQ: 50 to 70) or moderate (IQ: 35 to 50) intellectual disability with some cases having severe (IQ: 20 to 35) difficulties. The overall average IQ of a Down syndrome patient is 40 to 50.

Option ‘A’ is correct

Note:
One factor that increases the risk of having a baby with Down syndrome is the age of the mother. A woman who gets pregnant in her late thirties has a higher chance to have a baby with Down syndrome than a woman who carries a baby before thirty years.