Question
Biology Question on Principles of Inheritance and Variation
Mongolian idiots are due to trisomy in 21st chromosome is called:
A
Down's syndrome
B
Turner's syndrome
C
Kleinfelder's syndrome
D
Triplex syndrome
Answer
Down's syndrome
Explanation
Solution
Mongolian idiots due to trisomy in the 21st chromosome is called Down's syndrome. Down syndrome, also known as Trisomy 21, is a genetic disorder caused by the presence of an extra copy of chromosome 21. It leads to intellectual disabilities, distinctive physical features, and various health issues.
So, the correct option is (A): Down's syndrome