The stage at which all chromosomes line up at the equator of the cell is:
ATelophase
BMetaphase
CProphase
DAnaphase
Answer & Solution
Correct answer: B. Metaphase
1. Spindle fibres pull chromosomes into one plane.
2. That plane is called the metaphase plate.
3. So the stage is metaphase.
_Source: syllabus Biology Class XI, Chapter 10, Cell Cycle and Cell Division._
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