A cylindrical bioreactor of diameter 3 m has four baffles. A Rushton turbine mounted in the reactor has a diameter one third the tank diameter and is operated at a speed of 90 rpm. The density of the fluid is approximately I g cm^-3. The reactor is used to culture an anaerobic organism that does not require gas sparging. The broth can be assumed Newtonian. As the cells grow, the viscosity of the broth increases. when the viscosity is 1000 times greater than water, estimate the power required to achieve turbulence.

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#Question id: 12819

#Section 2: General Biology

The length and breadth of a rectangle are increased by 20% and 25% respectively. The increase in the area of the resulting rectangle will be :

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#Question id: 12902

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

An extension of microarray technology may also be used to analyze tissue sections,this process is known as_____

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#Question id: 12903

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

A gene isolation system that uses adapted vectors termed as_______

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#Question id: 12904

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Match the following:

1. Southern Blotting                               i. Melting temperature of DNA strand

2. DNA microchips                                   ii.oligonucleotide matching to DNA sample

3. ASO-PCR                                                 iii.DNA hybridization to oligo arrays

4. DGGE                                                        iv. labeled probe hybridization to DNA  

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#Question id: 12905

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Some gene/protein is used to identify the Disorder in humans

Match them correctly:

1. Tyrosine Kinase(TK)                        i. Atherosclerosis

2. HIV transactivator                          ii. Hypertension

3. Angiotensinogen                            iii. Kaposis Sarcoma

4. CET protein                                      iv. Cardiac Hypertrophy

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#Question id: 12906

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

An alternative method labeling strategy used in karyotyping and gene localisation is _______