hich of the following cell types would you expect would grow and divide continuously if given sufficient nutrients and mitogens (select all that apply)? A. Carcinoma cells from a liver biopsy B. Embryonic Stem Cells C. Normal human liver cells D. HeLa Cells E. Brain cells from mice
Oogenesis
The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.
Cell Division
Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:
Cancers cells are those cells which continue to grow and divide indefinitely in presence of sufficient nutrients and mitogens as these cells have lost property of contact inhibition which is the property that allows the cells to stop dividing when it comes in contact with other cells. Besides cancerous cells , stem cells also posses this property but with contact inhibition due to their totipotency they can proliferate and become specialized cells and even form the whole organism.Under the right conditions, HeLa cells form an immortal cell line; they divide indefinitely. Remember that HeLa cells were grown from a tissue sample from Lacks' cervical tumor.
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