Answer:
During prophase, the nucleus disappears, spindle fibers form, and DNA condenses into chromosomes ( sister chromatids ). During metaphase, the sister chromatids align along the equator of the cell by attaching their centromeres to the spindle fibers.
Explanation:
True, the hardness of all materials in relative <span />
The standard size of an atom is <span>1 X 10 -8 cm.
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