The most obvious difference between interphase and mitosis involves the ... It is now well-established that spindles are bipolar arrays of microtubules composed of tubulin (Figure 5) and that ...

At the end of prophase I, the nuclear membrane finally begins to break down. Outside the nucleus, the spindle grows out from centrosomes on each side of the cell. As in mitosis, the microtubules ...

Interphase The cell spends most of its life in this phase. The DNA in chromosomes copies itself ready for mitosis. Prophase The DNA in chromosomes and their copies condenses to become more visible.