Baby hamster kidney cells are immobilised in alginate beads. The average particle diameter is 5 mm. Rate of oxygen consumption at a bulk concentration of 8 x 10 ^-3 kg 0 2 m ^-3 is 8.4 x 10 ^-5 kg s^- 1 m^-3 catalyst. The effective diffusivity of oxygen in the beads is 1.88 x 10^ -9 m 2 s^- 1. Assume that the oxygen concentration at the surface of the catalyst is equal to the bulk concentration, and that oxygen uptake follows zero-order kinetics. calculate the observable Thiele modulus. 

TLS Online TPP Program

#Question id: 5244

#Section 3: Genetics, Cellular and Molecular Biology

Transformation can used to map bacterial gene, which of the following statement is correct?

TLS Online TPP Program

#Question id: 5245

#Section 3: Genetics, Cellular and Molecular Biology

Which method of gene transfer involves direct contact between the bacteria?

TLS Online TPP Program

#Question id: 5246

#Section 3: Genetics, Cellular and Molecular Biology

The end result of F factor mediated conjugation:

TLS Online TPP Program

#Question id: 5247

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following is not a protein or group of proteins required for conjugation to occur?

TLS Online TPP Program

#Question id: 5248

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following is a description of generalized transduction?

TLS Online TPP Program

#Question id: 5249

#Section 3: Genetics, Cellular and Molecular Biology

What is the best explanation for why Bernard Davis didn't observe generalized transduction in his U tube experiments?