Why is it important for chromosomes to be copied before cell division?
What would happen if cytokineis occurred without mitosis?
How are binary fission and mitosis similar? How are they different?
2006-11-08 11:58:34 · 3 answers · asked by Sarah S 3 in Science & Mathematics ➔ Botany
i need help on mostly the second question but i still need help on all of them
2006-11-08 12:00:22 · update #1
Each cell needs a full set of genetic material to function. Hence, DNA replication must occur before division.
Mitosis is the ordered separation of genetic material in eukaryotes.
Binary fission is division in prokaryotes. Both mitosis and binary fission are organized processes involving creation of two daughter cells. (see link)
2006-11-13 07:00:31 · answer #1 · answered by Shanna J 4 · 1⤊ 0⤋
If the chromosomes weren't copied, you'd only get half a chromosome when it divided. Which would suck. It probably would screw up the plant if it got messed up early in the growth process.
I thiiiink that cytokinesis without mitosis means that the cell would just split up along the middle but if the chromosomes weren't lined up, then the two divided daughter cells would have an uneven number of chromosomes. I think.
Also, I think that mitosis is when the chromosomes line up along the midline and then split and binary fission is when the cell just splits in half. I think. It's been about 10 years since I took biology. I guess they're similar because the cell splits in both of them, but they're different in that the cells are uneven in binary fission and even in mitosis. But don't quote me on that.
Of course, if I'm right, quote me all you want.
2006-11-08 20:07:06 · answer #2 · answered by SlowClap 6 · 0⤊ 0⤋
yes its important
one cell wouldnt have any chrom.
2006-11-08 20:06:20 · answer #3 · answered by spot 2 · 0⤊ 0⤋