Edexcel GCSE Biology · 1BI0
Specification 5.22B · Paper 1
Revise: Monoclonal Antibodies in Pregnancy TestingAt the test window, immobilised antibodies capture the complexes.
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GCSE Biology · key term
An antibody fixed in position on the test strip, where it captures the target or an antibody–target complex.
Used by Edexcel
Specification 5.22B · Paper 1
Revise: Monoclonal Antibodies in Pregnancy TestingAt the test window, immobilised antibodies capture the complexes.
For an explanation question, give the whole sequence: hCG in urine binds to labelled monoclonal antibodies; the complexes move along the strip; they bind to immobilised antibodies; the accumulated label forms a coloured test line.
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