Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 11021
TLS Online TPP Program

#Question id: 3790

Semiconservative replication of DNA means that:

#Section 3: Genetics, Cellular and Molecular Biology

  1. each daughter duplex will have one of the original parental strands and one new strand.

  2. one daughter duplex will be entirely new and the other will have both original parental strands.

  3. both daughter duplexes will be entirely new and the parental duplex will be degraded.

  4. each strand of each daughter duplex will have parts of the parental strands and parts of new strands.

More Questions
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
TLS Online TPP Program

#Question id: 15673

#Section 6: Plant, Animal and Microbial Biotechnology

A urine sample with more than 100,000 organisms is considered indicative of infection. A urine sample containing 5,000 bacteria, with a generation time of 30 minutes, sits for 3 hours before finally being assayed. How many bacteria will then be present within the sample?