NEET / MPSC ScienceMedium
Q.The occurrence of Trisomy 21 is primarily due to the failure of segregation of chromatids during the cell division cycle. This failure is genetically known as:
a
Synapsis
b
Crossing over
c
Non-disjunction
d
Recombination
Correct Answer: Option C
The correct solution involves applying the fundamental concept to derive the final value step by step...