The overall change in allelic frequency is a balance between the opposing forces of forward mutation and reverse  mutation:

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#Id: 4625

#Unit 13. Methods in Biology

The interaction between antibody and a particulate antigen results in visible clumping called agglutination. Antibodies that produce such reactions are called agglutinins.

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#Id: 6353

#Unit 8. Inheritance Biology

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#Id: 7262

#Unit 6. System Physiology – Plant

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#Id: 179

#Unit 5. Developmental Biology

Properties of epithelial-mesenchymal interactions:

Regional specificity of induction

Genetic specificity of induction

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#Id: 6322

#Unit 3. Fundamental Processes

Nonsense mutation in one gene of a transcription unit was found to prevent the expression of subsequent genes in the unit even though both genes had their own ribosome binding sites, an effect called polarity.