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(A): Trisomic condition of chromosome-21...

(A): Trisomic condition of chromosome-21 results in Down's syndrome
Reason (R): Mitotic or meiotic non-disjunction of sex chromosomes causes autosomal abnormalities.

A

If both A and R are true and R is correct explanation for A.

B

if both A and R are true but R is not the correct explanation for A

C

If A is true but R is false

D

If both A and R are false Assertion

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