After fusion, a flask contains hybridoma cells that make three different antibodies. The figure shows how the cells are then treated.
Figure: How hybridoma cells from one flask are separated and grown so that each well contains cells making a single antibody

Explain why only one cell is placed in each well.
The cells in the flask are drawn with three different patterns. Give what the three different patterns represent.
The antibody produced in each well is tested against the antigen before the antibody is used. Suggest why this testing is needed.
42 exam-style questions on AQA GCSE Biology 3.2 Monoclonal antibodies (HT only), covering 3.2.1 Producing monoclonal antibodies and 3.2.2 Uses of monoclonal antibodies. Each one has a worked solution and a mark scheme showing where the marks go.