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Mongolian idiots are due to trisomy of 21st chromosome; it is called :
A
Down's syndrome
B
Turner's syndrome
C
Klinefelter's syndrome
D
Triplex syndrome
Detailed Solution
Trisomy of chromosome 21 (47 chromosomes) causes Down's syndrome, earlier called mongolism.
Features include short stature, a small round head, a furrowed tongue, a partially open mouth, a broad palm with a single crease, and mental retardation.
Turner's syndrome is 45, XO and Klinefelter's syndrome is 47, XXY.
So it is called Down's syndrome.
Features include short stature, a small round head, a furrowed tongue, a partially open mouth, a broad palm with a single crease, and mental retardation.
Turner's syndrome is 45, XO and Klinefelter's syndrome is 47, XXY.
So it is called Down's syndrome.