Question

Assertion (A): Leukoderma is the biological term for blood cancer.
Reason (R): An abnormal increase in the number of WBCs causes blood cancer.

• A. (A) is true and (R) is false.
• B. (A) is false and (R) is true.
• C. Both (A) and (R) are true and (R) is the correct explanation of (A).
• D. Both (A) and (R) are true but (R) is not the correct explanation of (A).

Hint:

Remember that leukoderma refers to skin pigmentation loss, while leukemia refers to blood cancer. The correct term for blood cancer is leukemia, not leukoderma.

Answer 1

The Correct Option is A

Step 1: Understanding Assertion (A).
Leukoderma is a skin condition characterized by the loss of pigmentation in certain areas, leading to white patches. It is not the biological term for blood cancer. The correct biological term for blood cancer is leukemia, not leukoderma. Therefore, Assertion (A) is false.
Step 2: Understanding Reason (R).
The reason states that an abnormal increase in the number of WBCs (white blood cells) causes blood cancer. This is partially true, as leukemia (a type of blood cancer) is characterized by the abnormal increase in WBCs. However, the statement is not fully correct, as other factors contribute to blood cancer, and not all cases of abnormal WBC increases lead to leukemia. Therefore, Reason (R) is false.
Step 3: Conclusion.
Since Assertion (A) is false and Reason (R) is also false, the correct answer is (A) that Assertion (A) is true and Reason (R) is false. Final Answer: (A) (A) is true and (R) is false.