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The life of a eukaryotic cell can be explained as a cell cycle. Mitosis and cell division happens in the M phase that lasts for only about 1 h. This is followed by the G1 phase where G stand for gap, then the S phase S stand for synthesis, during that time the chromosomal DNA is replicated and at last the G2 phase in that the cells prepare for mitosis. Eukaryotic cells in culture classically have cell cycle times of 16-24 h but the cell cycle time can be much longer than > 100 days for some cells in a multicellular organism. Most of the variation in cell cycle times occurs by differences in the length of the G1 phase. Some cells in vivo like neurons, stop dividing totally and are said to be quiescent locked in a G0 phase.
Q. Is the epithelium vascularized? How do oxygen and nutrients reach the epithelium? Why is this feature an important evolutionary acquisition? Epithelia are not vascularized c
Cleavage - Metazoa The unicellular zygote begins cell division (cleavage). First, the single cell divides forming two cells, these redivide further to form four, then eight ce
define alimentary canal
What are Sphingolipids? Also there link to cancer caused in cells.
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When you eat a salad with lettuce, croutons, hard-boiled egg, bacon bits, and salad dressing, which one of those ingredients will be broken down the least by your digestive system?
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What are the situations in which the environment can alter the genotype of an individual? What is the condition for this type of change to be transmitted to the offspring? The
Explain the Eating Disorder Not Otherwise Specified (EDNOS)? Earlier, we emphasized that a diagnostic category for eating disorders that fail to meet full criteria for anorexia
Agriculture - Degradation of Ecosystem Agriculture whether traditional or modern involves intervention and modification of the natural ecological systems. Ever since man has s
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