The human genome encodes transcription factors that contain an acidic activation domain that is phosphorylated in response to increased levels of the second messenger cAMP. Which one of the following contains one of these activation domains?

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#Question id: 28542

#Unit 5. Developmental Biology

If CLV3= undergo loss of function and CLV1/2 = undergo gain of function resulting;

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#Question id: 1997

#Unit 4. Cell Communication and Cell Signaling

Which of the following is true of active but not passive immunity?

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#Question id: 2566

#Unit 2. Cellular Organization

An inhibitor of which of the following enzymes could be used to block the release of calcium from the endoplasmic reticulum?

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#Question id: 5613

#Unit 5. Developmental Biology

Female mice with the CD9 gene knocked out are infertile because

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#Question id: 10468

#Unit 6. System Physiology – Plant

Why are stomata required in leaf surface?