Which of the following allows for animal-free monoclonal antibody creation?

Question

BlackTom AI · Accepted Answer

The question asks which option enables animal-free monoclonal antibody creation, meaning a method to generate monoclonal antibodies without using animals for immunization.
Option a) ELISA screening: ELISA is a detection/assay technique used to measure antibody binding, not a method to generate monoclonal antibodies itself. It can screen antibodies produced by other methods, but it does not create antibodies without animals.
Option b) Humanized mouse lines: This involves animals (mice) and genetic modification to produce human-like antibodies. It is a traditional animal-based approach, not animal-free, so it cannot be the correct choice for animal-free monoclonal antibody generation.
Option c) Phage display library selection: Phage display is a widely used in vitro display technology that links phenotype (antibody fragments) to genotype (DNA inside the phage). By panning a diverse library against an antigen, one can isolate high-affinity antibody fragments without immunizing animals, enabling animal-free production of monoclonals. This directly satisfies the animal-free criterion.
Option d) Hybridoma fusion: Hybridoma technology combines an antibody-producing B cell with an immortal myeloma cell to create a monoclonal line. This process relies on immunized animals (typically mice) to generate the specific B cells, making it an animal-based method, not animal-free.
In summary, the core distinction is that phage display allows selection and optimization of antibody candidates entirely in vitro, without involving animal immunization, whereas the other options depend on animal-derived biology or animal-based workflows.

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