during prophase in mitotic cell division

Question

gtxmuqsit · Answer

WHat do you want to ask?

anonymous · Answer

Well, prophase is when the chromosomes become visable, the nucleolus disappears, the mitotic spindle forms, and the nuclear envelope disappears.

anonymous · Answer

In prophase, the chromatin condenses into discrete chromosomes. The nuclear envelope breaks down and spindles form at opposite "poles" of the cell. Many consider prophase (versus interphase) to be the first true step of the mitotic process.

Changes that occur in a cell during prophase:
Chromatin fibers become coiled into chromosomes with each chromosome having two chromatids joined at a centromere.

The mitotic spindle, composed of microtubules and proteins, forms in the cytoplasm.

In animal cells, the mitotic spindle initially appears as structures called asters which surround each centriole pair. 

The two pair of centrioles (formed from the replication of one pair in Interphase) move away from one another toward opposite ends of the cell due to the lengthening of the microtubules that form between them.