DON W. FAWCETT / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY DON W. FAWCETT / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY
A lymphoblast 36 hours after transformation induced by lectin concanavalin A. The increase in cell volume and development of euchromatic nucleus with prominent nucleolus stimulated by this method is similar to the transformation that occurs in response to an antigen. Transmission electron micrograph.
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