NEET / MPSC ScienceMedium
Q.Why is Down's syndrome classified as a 'Chromosomal Disorder' and strictly NOT a 'Mendelian Disorder'?
a
It is caused by the alteration or mutation in a single gene.
b
It is caused by the absence or excess of one or more whole chromosomes.
c
It follows a strict criss-cross inheritance pattern.
d
It is caused by environmental factors after birth.
Correct Answer: Option B
The correct solution involves applying the fundamental concept to derive the final value step by step...