Edible vaccines are produced from transgenic plants in which an orally active antigen of the target pathogen is expressed and accumulated, and which is fed to animals/humans for immunization against the pathogen.

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#Unit 3. Fundamental Processes

XP-V is caused by a defect in the translesion DNA polymerase, Pol n. The gene encoding Pol n is sometimes called XPV

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#Unit 5. Developmental Biology

In many cases, signaling factors maintain the stem cell in an uncommitted state.

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#Unit 5. Developmental Biology

The P2 cell produces juxtacrine protein APX-1(a Delta homologue)

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#Unit 2. Cellular Organization

Superhelical Density 

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#Unit 2. Cellular Organization

Promoter mutations are also cis-acting. If they prevent RNA polymerase from binding at P-lac, the structural genes are never transcribed.