In eukaryotes, gap filling in BER involves predominantly DNA polymerase β whereas the longer gaps generated in NER are filled by:

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#Question id: 749

#Part-A Aptitude & General Biotechnology

Which of the following is correct for the A form of DNA structures?

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#Question id: 13039

#Part-A Aptitude & General Biotechnology

 Which of the following is incorrect about a microarray?

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#Question id: 655

#Part-A Aptitude & General Biotechnology

A change from one conformation of a molecule to another involves ________.

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#Question id: 15623

#Part-B Specialized Branches in Biotechnology

Under unaerated condition in a fermentor, the power consumed by a single impeller was 10,000 W. The diameter of the impeller D is 1m and the density of the medium is 1000 kg/m3 and the stirrer speed is 1s^-1. If one more impeller is added to the fermentor, power consumption would be approximately

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#Question id: 14221

#Part-B Specialized Branches in Biotechnology

E. coli have a maximum respiration rate, qO2max, of about 240-mg O2/g-dry wt-h. It is desired to achieve a cell mass of 20 g dry wt/l. The kLa is 120 h-1 in a 1000-l reactor (800 l working volume). A gas stream enriched in oxygen is used (i.e., 80% O2) which gives a value of C* = 28 mg/L. If oxygen becomes limiting, growth and respiration slow; for example,

                                     

   where CL is the dissolved oxygen concentration in the fermenter. What is CL when the cell mass is  at 20 g/l?