A vector contains the nitR gene under the control of the nitA promoter in a separate operon, the expression of vector is used, upon the addition of the inducer. The inducer–NitR protein complex activates the transcription of both the target gene(s) and nitR and increased level of NitR results in a very high level of production of the target protein(s). Which type of inducer using by nitR?

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#Question id: 28529

#Unit 5. Developmental Biology

FACKEL (FK) encodes an enzyme which function as a critical for pattern formation during embryogenesis, such enzyme is know as___ 

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#Question id: 3681

#Unit 3. Fundamental Processes

 A mutated E. coli cell carries out and completes DNA replication, but the lagging strands are found to contain more errors than normal. These errors are not found evenly distributed throughout the lagging strands, but are found in clusters. Which enzymatic activity is missing from this cell?

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#Question id: 11164

#Unit 2. Cellular Organization

Cellular membranes are self-sealing— if they are punctured or disrupted mechanically, they quickly and automatically reseal. What properties of membranes are responsible for this important feature?

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#Question id: 826

#Unit 1. Molecules and their Interaction Relevant to Biology

Which one is incorrect about the proteins with segments rich in Pro (P), Glu (E), Ser (S), and Thr (T), the so-called PEST proteins,

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#Question id: 21115

#Unit 12. Applied Biology

Which one of the following biosensors is not a type of biosensor based on bio receptors?