Question

Q15. Consider the following statements about Down Syndrome:
1. Down syndrome (DS or DNS), also known as trisomy 21, is a genetic disorder.
2. There is no cure for Down syndrome.
Which of the above statement/s is/are correct?

• A. a) Only 1
• B. b) Only 2
• C. c) Both 1 and 2
• D. d) Neither 1 nor 2

Answer 1

The correct option is C c) Both 1 and 2

Down syndrome
1. Down syndrome (DS or DNS), also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21.
2. It is typically associated with physical growth delays, characteristic facial features and mild to moderate intellectual disability.
3. The average IQ of a young adult with Down syndrome is 50.
4. The parents of the affected individual are typically genetically normal. The extra chromosome occurs by random chance. There is no cure for Down syndrome