♥Daughter cells?

Question

--How would the daughter cells that underwent cytokinesis, but not mitosis, look?

--How would the daughter cells that underwent mitosis, but not cytokinesis, look?



Thanks in advance.

Answer 1

Cells that undergo mitosis (chromosome separation) without cytokinesis exist. They are polyploid cells, such as, for example, the megakaryocytes in the blood (the precursor of the platelets). In these cells, the chromosomes allign onto the mitotic spindle plate, each sister chromatide bind to the centromere and ultimately separate at anaphase, but as the cell does not activate cytokinesis, eventually the nucleus reforms around the separated chromatides with a 4N content of DNA. This nucleus is generally very big and the ratio nucleus/cytoplasm is reduced. Rarely, two nuclei cen form around each cet of chromosomes, ending up with a polynucleated cell.

As for cells undergoing cytokinesis but not mitosis, if they exixted, they would look as smaller "normal" cells until the next cell cycle, and then they would most certainly die because of only 1/2 of the genome being there (through mitotic catastrophe and apoptosis). This does never happen in nature, though because of the mitotic spindle checkpoint, which makes sure that chromosomes do not separate randomly or unevenly in the daughter cells.

Answer 2

Assuming when you say mitosis you mean DNA replication:

A cell that undergoes mitosis without cytokinesis will not have daughter cells and appear to be elongated or bigger than a daughter cell from a normal division. It will also have twice the DNA content. This occurs in myoblasts, the cells that make up your muscle.

A cell that undergoes cytokinesis without mitosis would likely yield daughter cells smaller in appearence and have half the DNA content of the parent cell. This process occurs naturally, we call it meiosis. It is most likely that a cell that underwent cytokinesis without mitosis would undergo apoptosis (die), at least if it was a somatic cell.

Answer 3

cytokinesis happens during the late stages of mitosis when the cytoplasm of a single cell is divided to produce 2 daughter cells.

Answer 4

Cytikinesis occurs after mitosis or meioisis. I never heard of cytokinesis without division of nucleus... if there is no division of the nucleus, you'll end up with cells without a nucleus... There are cells without nucleus, but they have it and lose it. They are not formed without it.

Some organisms such as slime molds and other fungi can undergo mitosis without cytokinesis. You will then have blobs or filaments with many nuclei. This is common.

Answer 5

Well...there's nothing to contrast actually. The daughter cell is an equivalent of the parent cell, having the same chromosome number and carrying the same genetic information. Though in some cases, the chromosome number of the daughter cell may exceed that of the parent cell but it usually returns to the orginal chromosome number.

Answer 6

--if a cell underwent mitosis but didn't complete cytokenisis, the cytoplasm would still be intact. The chromosomes would double but it wouldn't be two different cells.
--if a cell underwent cytokenisis but not mitosis, there would be two cells but the chromosomes wouldn't double because if didn't undergo mitosis.

Answer 7

It would be only one cell.