CELL DIVISION
CELL DIVISION AND CANCEROUS CELLS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cells undergo mitosis
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cells become specialized (into skin cells, nerve cells, etc.)
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cells undergo apoptosis
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cells become cancerous
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Detailed explanation-1: -In human development, a fertilized egg undergoes differentiation into other types of specialized cells present in the body such as muscle, neurons, etc. Undifferentiated cells are known as stem cells. These stem cells are located in the embryos and in adults.
Detailed explanation-2: -In order for a cell to differentiate into its specialized form and function, it need only manipulate those genes (and thus those proteins) that will be expressed, and not those that will remain silent. The primary mechanism by which genes are turned “on” or “off” is through transcription factors.
Detailed explanation-3: -Listen to pronunciation. (sel DIH-feh-REN-shee-AY-shun) The process during which young, immature (unspecialized) cells take on individual characteristics and reach their mature (specialized) form and function.
Detailed explanation-4: -Stem Cells A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized cells.
Detailed explanation-5: -Where does cell differentiation occur? Cell differentiation occurs in any tissue where stem cells are present. This includes a newly formed embryo in the uterus to adult stem cells in red bone marrow and skin.