The shortest alpha helix segment in a protein that will span a membrane bilayer has about _____ amino acid residues.

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#Question id: 353

#Section 4: Fundamentals of Biological Engineering

Measurements show that the pH of a particular lake is 4.0. What is the hydrogen ion concentration of the lake?

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#Question id: 3356

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following above way not cause sampling error in succeed generation?

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#Question id: 14284

#Section 5: Bioprocess Engineering and Process Biotechnology

The specific productivity (qp) of an enzyme production Is fitted linearly with specific growth rate p of a fungal organism according to the equation The estimated values of constants alpha and beta are 0.0006 and 25 respectively. The enzyme production kinetics is 

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#Question id: 19960

#Section 5: Bioprocess Engineering and Process Biotechnology

In the stoichiometric equation given below identify which one of the following corresponds to oxygen balance: 

CwHxOyNz + aO2 + bHgOhNi ―> c CHαOβNδ + dCO2 + eH2O 

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#Question id: 3892

#Section 3: Genetics, Cellular and Molecular Biology

The DNA binding motif for many prokaryotic regulatory proteins, such as the lac repressor, is: