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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Proto oncogenes are normally functioning genes and oncogenes have been mutated.
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Oncogenes are normally functioning genes and proto oncogenes have been mutated.
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There is no difference.
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Oncogenes tell the cell to stop dividing and proto oncogenes tell the cell to divide.
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Detailed explanation-1: -Proto-oncogenes are genes that normally help cells grow and divide to make new cells, or to help cells stay alive. When a proto-oncogene mutates (changes) or there are too many copies of it, it can become turned on (activated) when it is not supposed to be, at which point it’s now called an oncogene.
Detailed explanation-2: -A mutated (changed) form of a type of gene called a proto-oncogene, which is involved in normal cell growth and division. When a proto-oncogene is changed so that too many copies are made or it becomes more active than normal, it is called an oncogene.
Detailed explanation-3: -A proto-oncogene can’t cause cancer unless a mutation occurs, turning it into an oncogene. Healthy proto-oncogenes make proteins that help with cell function. When a mutation occurs in a proto-oncogene, it becomes permanently activated. The gene then starts making too much of the proteins that code for cell growth.
Detailed explanation-4: -Oncogenes and tumor suppressor genes are classes of genes that code for various proteins that are involved in the progression of the cell cycle. Oncogenes are actually mutated versions of proto-oncogenes, which are normal genes in charge of positive regulation of the cell-cycle.
Detailed explanation-5: -Before an oncogene becomes mutated, it is called a proto-oncogene, and it plays a role in regulating normal cell division. Cancer can arise when a proto-oncogene is mutated, changing it into an oncogene and causing the cell to divide and multiply uncontrollably.