Laboratory-scale fermenters are usually mixed using small stirrers with electric motors rated between 100 and 500 W. One such motor is used to drive a 7cm turbine impeller in a small reactor containing fluid with the properties of water. The stirrer speed is 900 rpm. Estimate the power requirements for this process.

TLS Online TPP Program

#Question id: 15727

#Section 6: Plant, Animal and Microbial Biotechnology

The stationary phase is forced on the culture by , identify correct option

1. Depletion of the nutrients

2. Due to accumulation of cellular wastes

3. Accumulation of the nutrients

4. Removal of cellular wastes

TLS Online TPP Program

#Question id: 15728

#Section 6: Plant, Animal and Microbial Biotechnology

Single cells can be cultured using the following techniques:

(1) Filter paper raft-nurse tissue technique

(2) Microchamber technique

(3) Microdrop method

(4) Bergman's plating technique

(5) Thin layer liquid medium

Select the option with correct choices.

TLS Online TPP Program

#Question id: 15730

#Section 6: Plant, Animal and Microbial Biotechnology

Haploid plants may be obtained from culturing

1) Anther culture

2) Pollen culture

3) Stem culture

4) Ovary culture

TLS Online TPP Program

#Question id: 15731

#Section 6: Plant, Animal and Microbial Biotechnology

Conditions for rooting involves

1. low salt

2. reduced sugar level

3. addition of NAA

Which of the above statements combinations are correct

TLS Online TPP Program

#Question id: 15732

#Section 6: Plant, Animal and Microbial Biotechnology

In the phases of callus growth which phase shows cells expansion increase.

TLS Online TPP Program

#Question id: 15733

#Section 6: Plant, Animal and Microbial Biotechnology

Embryo culture technique is applied to

1. Overcome seed dormancy

2. Prevention of embryo abortion in wide crosses

3. Formation of protoplast

4. Shortening of breeding cycle

Which option has incorrect statement