In which studies have shown that phosphorylated NtrC bound at enhancers and σ54-polymerase bound at the promoter interact directly, forming a loop in the DNA between the binding sites?

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#Question id: 14447

#Section 1: Engineering Mathematics

 If is a singular matrix, then x is 

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#Question id: 14448

#Section 1: Engineering Mathematics

Find the value of x for which the matrix   is singular. 

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#Question id: 14449

#Section 1: Engineering Mathematics

Find x, if   is singular

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#Question id: 14450

#Section 1: Engineering Mathematics

Find the adjoint of the matrix A, where A= 

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#Question id: 14451

#Section 2: General Biology

What is the difference between Psychrotrophs and Psychrophiles respectively?

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#Question id: 14452

#Section 2: General Biology

Some organisms, called extreme halophiles, have adapted so well to high salt concentrations that they actually require them for growth. They are called as