Smo has seven TM α helices, is a member of the GPCR superfamily, and is related in sequence to the Fz.

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#Id: 7600

#Unit 5. Developmental Biology

The mammalian egg encounters a heterogeneous population of sperm. Some sperm have undergone the acrosome reaction in or near the cumulus, whereas others have not. The egg have pathways for accepting both types of capacitated sperm.

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#Id: 1710

#Unit 4. Cell Communication and Cell Signaling

Eosinophils play their most important role in the defense against multicellular parasitic organisms, including worms.

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#Id: 6058

#Unit 10. Ecological Principles

 Cold Desert: In the daytime, temperatures can be high in the summer, 21–26ºC, but average around freezing, –24ºC, in the winter.

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#Id: 10309

#Unit 4. Cell Communication and Cell Signaling

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#Id: 760

#Unit 3. Fundamental Processes

Promoter search->closed promoter complex -> open promoter complex