WebNov 13, 2024 · In a healthy cell, the rate of DNA repair is equal to the rate of DNA mutation. When the rate of repair lags behind the rate of mutation, what is a possible fate of the … WebApr 9, 2013 · Vitamin C had no effect on the rate of repair of strand breaks or oxidized bases by HeLa cells. ... and DNA repair, in HeLa (human tumor) cells, and HPLC to measure uptake of vitamin C into cells. Results: Even at concentrations in the medium as high as 200 μM, vitamin C did not increase the background level of strand breaks or of oxidized ...
Cancer and the cell cycle Biology (article) Khan Academy
WebMar 19, 2024 · All cancer cells have DNA mutations, and it is the carcinogens that cause the mutations. Carcinogens cause mutations by damaging the way the cell repairs DNA or makes proteins. If the cancer cell is not able to repair this DNA damage, then it will keep dividing to make new cells and will pass the mutation on to all the new cells that are made. WebNormal cells can repair themselves if their genes become damaged. This is known as DNA repair. Cells self destruct if the damage is too bad. Scientists call this process apoptosis. In cancer cells, the molecules that decide whether a cell should repair itself are faulty. For example, a protein called p53 usually checks if the cell can repair ... biometric encyclopedia
Vitamin C in Cultured Human (HeLa) Cells: Lack of Effect on DNA ...
WebFeb 26, 2024 · Biology High School answered • expert verified In a healthy cell, the rate of DNA repair is equal to the rate of DNA mutation. When the rate of repair lags behind the rate of mutation, what is a possible fate of the cell? 1 See answer Advertisement Larus Answer: The possible fate of the cell that it may turn cancerous. Explanation: WebWhen a cell’s DNA is damaged, a sensor protein activates p53, which halts the cell cycle at the G 1 _1 1 start subscript, 1, end subscript checkpoint by triggering production of a cell … WebApr 15, 2024 · Medicine. From cancer treatment to sunlight, radiation and toxins can severely damage DNA in both harmful and healthy cells. While the body has evolved to efficiently treat and restore damaged cells, the mechanisms that allow this natural repair remain misunderstood. In a new study, Northwestern University researchers have used … biometric entry exit tracking system