NEET 1995 · Class 11

Body Fluids and Circulation

Antigens are present

  1. (A)inside the cytoplasm
  2. (B)on nuclear membrane
  3. (C)inside the nucleus
  4. (D)on cell surface

The NCERT line that answers it

Verbatim line

ABO grouping is based on the presence or absence of two surface antigens (chemicals that can induce immune response) on the RBCs namely A and B.

Chapter
Body Fluids and Circulation
Section
15.1.3 Blood Groups
Page
2
Words matched
26 of 26

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=0.7973, combined=0.8784). Verified: high — The span explicitly states that antigens are 'surface antigens' located 'on the RBCs', which directly supports option D (on cell surface) and distinguishes it from the other options.

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