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Assertion (A) : Cancer cells are virtual...

Assertion (A) : Cancer cells are virtually immortal until the body in which they reside dies.
Reason (R): Cancer is caused by damage to genes regulating the cell they division cycle.

A

Both Assertion & Reason are true and the reason is the correct explanation of the assertion.

B

Both Assertion & Reason are true but the reason is not the correct explanation of the assertion.

C

Assertion is true statement but Reason is false.

D

Both Assertion and Reason are false statements.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion and the reason provided. ### Step 1: Analyze the Assertion The assertion states: "Cancer cells are virtually immortal until the body in which they reside dies." - **Explanation**: Cancer cells are characterized by uncontrolled growth and division. Unlike normal cells, which have a finite lifespan and undergo programmed cell death (apoptosis), cancer cells can continue to divide indefinitely. This characteristic gives them a form of "immortality" as long as the host body is alive. ### Step 2: Analyze the Reason The reason states: "Cancer is caused by damage to genes regulating the cell division cycle." - **Explanation**: This statement is also true. Cancer arises from mutations in genes that control the cell cycle, including oncogenes (which promote cell division) and tumor suppressor genes (which inhibit cell division). When these genes are damaged, it can lead to uncontrolled cell proliferation, which is a hallmark of cancer. ### Step 3: Determine the Relationship Between Assertion and Reason - Both the assertion and reason are true statements. However, the reason does not directly explain why cancer cells are considered "immortal." The immortality of cancer cells is a consequence of their uncontrolled division rather than a direct result of the damage to the genes regulating the cell cycle. ### Conclusion Based on the analysis: - Both the assertion and reason are true, but the reason does not correctly explain the assertion. ### Final Answer The correct option is: "Both assertion and reason are true but the reason is not the correct explanation of the assertion." ---
To solve the question, we need to analyze both the assertion and the reason provided. ### Step 1: Analyze the Assertion The assertion states: "Cancer cells are virtually immortal until the body in which they reside dies." - **Explanation**: Cancer cells are characterized by uncontrolled growth and division. Unlike normal cells, which have a finite lifespan and undergo programmed cell death (apoptosis), cancer cells can continue to divide indefinitely. This characteristic gives them a form of "immortality" as long as the host body is alive. ### Step 2: Analyze the Reason The reason states: "Cancer is caused by damage to genes regulating the cell division cycle." ...
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