Botany-Mendel's Laws
NEET Botany Mendel's Laws Assertion Reason Question
Type: Assertion Reason-assertion-Hard-Class 12
Assertion (A): Down's syndrome is caused by the presence of an additional copy of chromosome 21. | Reason (R): Down's syndrome is an example of a chromosomal disorder resulting from trisomy.
A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false.
Correct Answer
Option A
Detailed Explanation
Down's syndrome is indeed caused by trisomy of chromosome 21, making both the assertion and reason true, with R explaining A.
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