Jason, a 4-year-old, has an intellectual disability and has shorter limbs than other children his age. His pediatrician observes that Jason has a protruding tongue and an extra fold of skin over his eyelids. Jason's mother informs the pediatrician that she was 30 at the time of Jason's birth and that he was born with a flat skull. From this information, the pediatrician will most likely diagnose Jason with:. a. Turner syndrome.
b. Klinefelter syndrome.
c. Down syndrome.
d. XYY syndrome.

c. Down syndrome.

Explanation:

From the information above, the pediatrician would most likely diagnose Jason with down syndrome because the highlighted symptoms are all signs of a person with down syndrome.

Down syndrome is a medical condition related with autosomal disorder which consequently affects the Chromosome 21, also called automosal, of an individual. It is not associated with heredity nor is a recessive trait but simply an error/abnormal division of cells in Chromosome 21.

Some common clinical features of down syndrome are flat facial facial and head structure, intelligence disability, short neck, extra fold of skin over eyelids and neck,etc.

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