ANATOMY
THE BREAST
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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proto-oncogene
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tumor suppressor gene
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transcription factor
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None of the above
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Detailed explanation-1: -Cancer can arise when a proto-oncogene is mutated, changing it into an oncogene and causing the cell to divide and multiply uncontrollably. Some oncogenes work like an accelerator pedal in a car, pushing a cell to divide again and again.
Detailed explanation-2: -Oncogenes refer to those genes whose alterations cause gain-of-function effects, while tumor suppressor genes cause loss-of-function effects that contribute to the malignant phenotype.
Detailed explanation-3: -Oncogenes are the main genes contributing to the conversion of normal cells to cancer cells and tumor-suppressive genes block the development of cancer. The way they both act is complicated and needs further investigation to fully elucidate cancer pathways and carcinogenesis.