The hybridoma technique is a lab method that fuses two different cells together, and the question asks what final product this method is built to supply.
- purified antibodies: A hybridoma is made by fusing an antibody making B lymphocyte with a myeloma cell that can divide forever. The resulting hybrid cell line keeps churning out the exact same antibody that its parent B lymphocyte was making, giving a limitless, pure supply of one antibody, known as a monoclonal antibody. This is the true purpose of the technique.
- purified antigens: Antigens are the substances given beforehand to trigger the immune response and make the B lymphocyte in the first place. They are the starting trigger, not the output of the fusion technique.
- purified lymphocytes: A lymphocyte is only one of the two cells fused together to build the hybridoma. Getting more lymphocytes is not the goal of the process.
- purified macrophages: Macrophages play no role in building a hybridoma and are not related to this technique at all.
Since the whole design of cell fusion is to keep a B lymphocyte's antibody-making ability alive forever in a dividing cell line, the product obtained is pure antibody.
Let's summarize:
- Hybridoma equals a B lymphocyte, which makes antibody, fused with a myeloma cell, which divides endlessly.
- The output is monoclonal antibody, meaning one pure, unlimited antibody type.
So the hybridoma technique is used to obtain purified antibodies.