Q. If you are provided with root-tips of onion in your class and are asked to count the chromosomes, which of the following stages can you most conveniently look into?
A) Metaphase
B) Telophase
C) Anaphase
D) Prophase
Explanation
At metaphase, the chromosome are clearly visible as composed to two closely associated halves (chromatids) and the chromosomes have undergone maximum contraction, so these can be counted conveniently.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.