Question

During prophase, pairs of what serve as focal points for the growth of clusters of microtubules that spread out across the nucleus?

Answer 1

During prophase, pairs of CENTRIOLES serve as focal point for the growth of clusters of microtubules that spread out across the nucleus. Prophase is one of the steps of mitosis. During the prophase stage, the DNA of the cell condenses, formation of spindle fibers begins and the nuclear envelope dissolves.