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Biology · PYQ NEET UG 2026
हिन्दीGiven below are two statements : Statement I : Down's syndrome is caused by the absence of one of the X-chromosomes. Statement II : Turner's syndrome is caused by the presence of an additional copy of the chromosomes. In the light of the above statements, choose the correct answer from the options given below :
Correct answer · Option 2
Both Statement I and Statement II are incorrect
Explanation
Down's syndrome is caused by trisomy of chromosome 21, and Turner's syndrome is caused by the absence of one X chromosome (XO). Thus, both statements are incorrect.
