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.

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
B. It both Assertion & 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. It both Assertion and Reason are false statements.

Answer

b

Explanation

Cancer is a growth disorfer of cells. It starts when apparently cell begins to grow in an uncontrolled and invasive way. The result is a cluster of cell. Called that leave the tumor and spread through the body. Forming new tumors at distance sites, ara called metastase. Cancer is a gene fail to properly control cell prolifertion. the cell division cycel is regulated by a sophisticated group of protein. more thn one mutation is necessary for carcinogensis. In fact a series of several mutations to certain classes of genes is usually required before a normal cell well transform into a genes which play vital roles in cell division, cell death, and DNA repair will cause a cell to lose control of its proliferation. Cancer can be caused by chemical that minute DNA or in some instances by viruses that circumevent the cell's normal proliferation controles. Whatever the immediate by cause, however, all cancers are characterized by unrestrained growth and division. Cell division never stops in a cancerous line of cells. Cancer cell are virtually immortal- until the body in which they reside dies.