A cylindrical stirred bioreactor of diameter and height 2 m has a Rushton turbine one-third the tank diameter in size. The bioreactor contains Newtonian culture broth with the same density as water and with viscosity 4 cP. The tank is now aerated. In the presence of gas bubbles, the approximate relationship between ungassed power number (N_P)₀ and gassed power number (N_P)g is: (N_P)g =0.5 (N_P)₀. What maximum stirrer speed is now possible in the sparged reactor? Estimate the mixing time.

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#Question id: 11294

#Part-B Specialized Branches in Biotechnology

A small lake has three trophic level – Phytoplankton(autotroph) , Zooplankton (herbivore ) and planktivorous fish ( primary carnivore) . In to this lake Population of some other primary carnivore introduced to study top down effect . What is expected long term consequence of this  introduction ?

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#Question id: 19881

#Part-A Aptitude & General Biotechnology

The DNA moleclule to which the gene of insert is integrated for cloning is called

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#Question id: 20601

#Part-B Specialized Branches in Biotechnology

The difference between the set points and the measured signal is known as ______________?

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#Question id: 5724

#Part-B Specialized Branches in Biotechnology

Species I is diploid (2n  = 8) with chromosomes

AABBCCDD; related species II is diploid (2n = 8) with chromosomes MMNNOOPP. Individuals with the following sets of chromosomes represent what types of chromosome mutations?

A-   AAABBCCDD        B-   AABBCCDDMNOP

C-   AAABBCCDDD

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#Question id: 3621

#Part-A Aptitude & General Biotechnology

This is the genotype of blood group A