Question

Assertion : Cancer is contagious and cells can spread from one Person to other.

Reason : Cancerous cells are highly de-differentiated cells

(a) Both A and R are true and R is the correct explanation of A.

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

Correct option (d) A and R are false

Explanation :

Cancer is not contagious, but the cancerous cells are highly differentiated cells. Cancer is the result of a continuous. abnormal and relatively autonomous cell proliferation, which is due to the permanent alteration of some cells that gets transmitted to cell family. It is a disease caused by the loss of control over a cell's reproduction capacity. Rather than dividing in a controlled and programmed manner, the cell continues to divide and multiply abnormally, until a detectable lump of tumor develops.