In which one of the following, antibody formations takes place?

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Q: 2 (NDA-II/2008)
In which one of the following, antibody formations takes place?

question_subject: 

Science

question_exam: 

NDA-II

stats: 

0,24,56,29,19,24,8

keywords: 

{'antibody formations': [0, 0, 1, 0], 'blood plasma': [1, 0, 2, 0], 'blood platelets': [2, 0, 0, 0], 'membrane': [1, 1, 1, 2], 'rbcs': [2, 0, 1, 1]}

The correct answer is option 3: Blood plasma. Antibody formation, also known as antibody synthesis, occurs in blood plasma. Antibodies are proteins produced by specialized white blood cells called B cells, which are found in the blood and lymphoid tissues such as the spleen and lymph nodes.

Option 1: RBCs (red blood cells) do not participate in antibody formation. They have a different function, which is to carry oxygen to the tissues of the body.

Option 2: Blood platelets are responsible for blood clotting and do not play a role in antibody formation.

Option 4: Donnan`s membrane is unrelated to antibody formation. Donnan`s membrane refers to a physicochemical phenomenon involving the separation of ions across a semipermeable membrane.

In summary, antibody formation occurs in blood plasma, and the correct answer is option 3.