Daughter cells of two types (neuroblast-type and ganglion cell type) were produced by operations in which the mitotic apparatus was rotated or shifted. Cell types were classified by such characteristics as nuclear shape, mitotic activity, and inequality or equality of the subsequent cytokinesis. It...
We defined a division as asynchronous but symmetric if there was only a time delay between the division onset of the two daughter cells with symmetric distribution of the membrane dye between each of the four second-generation daughter cells. Statistical analysis Results of experimental points from ...
Cell division is the process through which new cells arise from preexisting ones. It is a tightly monitored process because the cells need to be able to pass on the same amount of DNA so that a daughter cell is properly produced.
Mitosis- produces twoidenticaldaughter cells [有絲分裂:製造兩個相等的子細胞] - each daughter cell has the samekindandnumberof chromosomes as the original parent cell [每個子細胞都和原本的親代細胞有相同的染色體種類和數目] -interphase(resting stage) - chromosomes cannot be seen (it is in long &...
Meiosis in oocytes is demanding, requiring chromosomes to be evenly segregated between daughter cells while the cytoplasm should be unequally shared to benefit the oocyte. Indeed, oocytes are extremely large cells compared to most somatic cells and divid
During the emergence of neural crest cells from the neural tube, the expression of cadherins dynamically changes. In the embryo, the early neural tube expr... S Nakagawa,M Takeichi - 《Development》 被引量: 765发表: 1998年 The maternal sex determination gene daughterless has zygotic activity...
In eukaryotes, chromosomal DNA is equally distributed to daughter cells during mitosis, whereas the number of chromosomes is halved during meiosis. Despite considerable progress in understanding the molecular mechanisms that regulate mitosis, there is currently a lack of complete understanding of the molec...
Then in 1886, Errera proposed that most planes of plant cell divisions followed the shortest possible path (i.e. minimal surface area), halving the cell into two daughter cells of equal volume in a way similar to soap film formation that tends to optimize the energy by minimising their ...
The correlation between predicted and experimental data suggests LR-HSCs cycle symmetrically, generating two daughter LR-HSCs with each division, which we can visualize a maximum of four times, and LR-HSCs found in peak 4 in young mice remain deeply dormant throughout adult life. LR-HSC Cell-...
In eukaryotes, chromosomal DNA is equally distributed to daughter cells during mitosis, whereas the number of chromosomes is halved during meiosis. Despite considerable progress in understanding the molecular mechanisms that regulate mitosis, there is currently a lack of complete understanding of the molec...