Quasi precommitment

The precommitment hypothesis is considered throughout this review in its strict sense, thus as precommitment to synthesis of a single species of antibody molecules. It will be referred to as strict precommitment. Where it would be experimentally undistinguishable from precommitment to form a small number of different specificities, it will be referred to as quasi precommitment. 

Hence it can be concluded that the above experiments strongly support the precommitment hypothesis. It is not possible to distinguish between strict precommitment and quasi precommitment (see Introduction) because the method is insufficiently sensitive. 

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