What is the probability that each of the following pairs of parents will produce the indicated offspring? (Assume independent assortment of all gene pairs.)

(a) AABBCc X  aabbcc → AaBbCc          (b) AABbCc  X AaBbCc → AAbbCC

(c) AaBbCc  X AaBbCc → AaBbCc         (d) aaBbCC  X  AABbcc → AaBbCc

TLS Online TPP Program

#Question id: 15648

#Section 4: Fundamentals of Biological Engineering

The main function of baffles in a bioreactor are

P. to prevent a vortex

Q. to increase aeration

R. to reduce interfacial area of oxygen transfer

S. to reduce aeration rate

TLS Online TPP Program

#Question id: 15649

#Section 4: Fundamentals of Biological Engineering

A bacterial culture having a specific oxygen uptake rate of 5 mmol O2 (g DCW)⁻¹ h⁻¹ is being grown aerobically in a fed-batch reactor. The maximum value of the volumetric oxygen transfer coefficient is 0.18 s⁻¹ for the stirred tank bioreactor and the critical dissolved oxygen concentration is 20% of the saturation concentration (8 mg L⁻¹). The maximum density to which the cells can be grown in the fed-batch process, without the growth being limited by oxygen transfer, is approximately

TLS Online TPP Program

#Question id: 15650

#Section 4: Fundamentals of Biological Engineering

For scaling up of a bioreactor, the following parameter is assumed to be constant

TLS Online TPP Program

#Question id: 15651

#Section 4: Fundamentals of Biological Engineering

Power number, also called Newton’s number, is defined as a dimensionless parameter relating to:

TLS Online TPP Program

#Question id: 15671

#Section 6: Plant, Animal and Microbial Biotechnology

The lag phase of the bacterial growth curve is marked by

TLS Online TPP Program

#Question id: 15672

#Section 6: Plant, Animal and Microbial Biotechnology

Late log phase of the bacterial growth curve