All body cells (somatic cells) with the exception of a few types such as central nervous system neurons, will undergo cell division to replace themselves. This happens through the process of mitosis in which the nucleus of the parent cell is copied and that cell eventually splits in half ...
How many somatic cells are produced in mitosis?Cell Division:Mitosis is the process of somatic cells dividing. Cells must divide to replace old, dying cells, and for the organism to grow. Mitosis is a highly regulated process to ensure exact copying of the DNA....
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Phosphorylation during mitosis: How many kinases are out there?breast cancercancer invasionglypicannuclear factor of activated T-cells (NFATtranscription factorComment on: Rizkallah R, et al. Cell Cycle 2011; 10: 3327-36.doi:10.4161/cc.10.22.18195...
How many mitosis and meiosis are required for the formation of 900 male gametes starting from PMC, if only 3 microspores remains functional?
coli bacterium, cells of plants and animals have chromosomes that hold the DNA strands. Humans have 23 pairs of chromosomes, for a total of 46 chromosomes. Fruit flies have five pairs. Dogs have 39 pairs, and some plants have as many as 100. Chromosomes come in pairs. Each chromosome is...
Defler paced the front of the classroom telling us how mitosis—the process of cell division—makes it possible for embryos to grow into babies, and for our bodies to create new cells for healing wounds or replenishing blood we’ve lost. It was beautiful, he said, like a perfectly choreogr...
This simple scenario illustrates how cells can coordinately destroy specific groups of proteins by regulating E3 activity. A good example of this form of regulation is the APC, which becomes active late in mitosis. The activation of the APC promotes coordinate destruction of many proteins required ...
Occurrence of many diseases caused by faulty genetics, such as down syndrome, are due to an extra chromosome. Why would this extra chromosome mutation occur in meiosis rather than mitosis? Why? Include information on daughter cells an...
How do cells specify their dimen- sions, and how is a certain size (like cell shape) advanta- geous in evolutionary terms? It is clear that many cells tightly maintain their size as they grow and divide using homeostatic mechanisms [63,64]. For instance, some cells commit to division ...