how do cancer cells differ from normal cells in time spent for each phase of mitosis?

Question

also, which organism, salamander or pea, shows time needed to complete mitosis most like an onion cell?
Salamander spends 60 min. in prophase, 50 min. in metaphase, 6 min. in anaphase, and 70 min. in telophase.
pea cells spend 80 min. in prophase, 40 min. in metaphase, 4 min. in anaphase, and 12 min. in telophase.

as opposed to...
an onion cell, which spends 125 min. in prophase, 25 in. in metaphase, 19 min. in anaphase, and 38 min. in telophase, out of 720 min. total? (that's 720 min. including time for interphase)

and why might these 2 organisms (the onion cell & pea or the onion cell & salamander) whichever is more similar, require similar times to complete mitosis?

ALSO:
what is the longest phase of mitosis & why is so much time spent on it.
i know the longest phase is prophase, but why is so much time spent on it?

Answer 1

A. Cancer cells don't spend very long in interphase - they just race through cell division, out of control. Interphase is a part of the cell cycle, but isn't technically a part of mitosis (prophase, metaphase, anaphase, telophase).

B. Analyze those numbers:

Salamander: 60, 50, 6, 70 = 186 minutes total
Pea: 80, 40, 4, 12 = 136 minutes total
Onion: 125, 25, 19, 38 = 207 minutes total

Just on total minutes for mitosis, 186 for salamanders is closer to 207 for onions.

Answer 2

this was 10 years ago yet i have to same hw assignment rn......

Answer 3

do yout homework =)