Agglutination occurs in blood present in a test tube. This indicates:
1.  Antibodies are present in plasma
2.  Antigens are present on R.B.C.
3.  Antigens are present in plasma
4.  Antibodies are present on R.B.C

Subtopic:  Blood: Blood Group (A,B,O) |
AIPMT - 1999
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What is correct for Blood group 'O':
1.  No antigens but both a and b antibodies are present
2.  A antigen and b antibody present
3.  Antigen and antibody, both are absent
4.  A and B antigens and a, b, antibodies are present

Subtopic:  Blood: Blood Group (A,B,O) |
 92%
From NCERT
AIPMT - 2001
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In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be:

1. O

2. AB

3. A

4. B

Subtopic:  Blood: Blood Group (A,B,O) |
 87%
From NCERT
AIPMT - 2004
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