What family of proteins plays an essential role in the repression of genes that help to direct the formation of specific tissues and organs in a developing embryo?

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#Question id: 21141

#Unit 12. Applied Biology

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: 3945

#Unit 3. Fundamental Processes

About 30% of point mutations (substitutions) that occur in coding regions of DNA are harmless. Why?

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#Question id: 10695

#Unit 10. Ecological Principles

Consumer (+) and resource (-) interactions classified by the two factor

T- Duration or intimacy of the association between individuals

Kp- Probability that resource individuals will be killed

Which of the following some statement are correct?

A-  Value of T for Grazer is greater than parasite

B-  Value of Kp for predator is greater than parasite

C-  Value of Kp for parasite is greater than parasitoid

D-  Value of T for parasitoid is greater than predator

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#Question id: 33344

#Unit 2. Cellular Organization

Which of the following enzyme insert cell wall precursors into the growing point of the cell wall and interacts with bactoprenol? 

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#Question id: 23566

#Unit 8. Inheritance Biology

C-bands involved for the detection of__