CELL STRUCTURES AND FUNCTION
CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Select all that describe a “Normal Cell”
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Divide about 40-60 times before they “grow old” and die
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Respond to cell cycle regulator signals to stop dividing
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When cell has damaged DNA the cell dies
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Ignore signals to stop dividing, respond to positive and negative factors
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Divide many more times than normal cells
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Explanation:
Detailed explanation-1: -Most DNA damage gets repaired straight away because of these proteins. But if the DNA damage occurs to a gene that makes a DNA repair protein, a cell has less ability to repair itself. So errors will build up in other genes over time and allow a cancer to form.
Detailed explanation-2: -Damage to DNA can cause genetic alterations, and if genes that control cell growth are involved, these mutations can lead to the development of cancer.
There is 1 question to complete.