Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as
Assertion: Cancer cells are virtually immortal until the body in which they resides dies. Reason: Cancer is caused by damage to genes regulating the cell division cycle.A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but the reason is not the correct explanation of the assertion.
C) If assertion is true statement but reason is false.
D) If both assertion and reason are false.
Correct Answer: A
Solution :
Cancer is caused by damage to genes regulating the cell division cycle. It is an uncontrolled proliferation of the cells. All types of cancer have five basic characteristics: Uncontrolled cell growth. Loss of cell differentiation (specialization). Invation of normal tissues. Metastasis or spread to multiple sites. Loss of contact inhibition. All these characteristics make the cancer importal until the body in which it resides dies.
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