Each antibody binds to a particular target molecule extremely tightly, either inactivating the target directly or marking it for destruction. An antibody recognizes its target molecule— called an ________—with remarkable specificity, and, because there are potentially billions of different antigens that a person might encounter, we have to be able to produce billions of different antibodies.
举一反三
- In a typical communication between cells, the signaling cell produces a particular type of intracellular signal molecule that is detected by the target cell.
- The set of controllable, tactical marketing tools that the firm blends together to produce its response to the wants of its target market are called its _____.
- Which of the following statements are correct？（ ） A: An organisation following the target marketing concept should target all market segments. B: Markets can be segmented many different ways using different segmentation variables. C: Market segments should be selected for targeting after an evaluation process. D: Different target markets may require a different positioning strategy.
- Which Notch target gene is a key molecule in blast crisis transition in CML A: Hey B: hes C: c-myc D: wnt
- Protein kinase A itself is different in different cell types， which explains why the effects of cyclic AMP vary depending on the target cell. （ ）