NEET 2015 · Class 11

Body Fluids and Circulation

Erythropoiesis starts in

  1. (A)spleen
  2. (B)red bone marrow
  3. (C)kidney
  4. (D)liver

The NCERT line that answers it

Concept-grounded

RBCs are formed in the red bone marrow in the adults.

Chapter
Body Fluids and Circulation
Section
15.1.2 Formed Elements

The answer is taught in this NCERT section but is not one quotable sentence. It needs combining facts or applying the idea.

How this line gives the answer

Claim discrepancy: claimed D, GPT says B. Matched with override at hybrid rank 1.

We did this for 1,565 questions.

Every one traced to the exact sentence in NCERT that answers it, including 90% of the 2026 paper. Sit a mock on the real NEET 2027 computer interface and every mark you drop comes back with its line attached.

Take the free 5-minute checkMore from this chapter

Question text is reproduced from the published NEET 2015 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.