Practice Questions

TLS Online TPP Program

#Question id: 19197

What are calorimetric biosensors?

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

They measure the change in temperature of the solution containing the analyte
It is impossible to detect differences as low as 0.0001°C
Also called as cryophilic biosensor
Sensitivity can be decreased by using two or more enzymes

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TLS Online TPP Program

#Question id: 15875

#Section 6: Plant, Animal and Microbial Biotechnology

Suspension cultures show both numerical and structural chromosomal changes such as;

TLS Online TPP Program

#Question id: 15876

#Section 6: Plant, Animal and Microbial Biotechnology

The following growth regulators (GRs)- auxins, cytokinins, ABA and GA3 are used in plant tissue culture, The common range of concentrations used are as follows:

GROWTH REGULATOR(GRs) CONCENTERATION

A) AUXIN i) 0.1-3 mg/L

B) GA3 ii) 0.2 mg/L

C) CYTOKININ iii) 0.1-1 mg/L

TLS Online TPP Program

#Question id: 15877

#Section 6: Plant, Animal and Microbial Biotechnology

Zinc as micronutrient is used in culture media for____

TLS Online TPP Program

#Question id: 15878

#Section 6: Plant, Animal and Microbial Biotechnology

A vitamin which has been found to inhibit callus formation and improve growth and quality of shoots.

TLS Online TPP Program

#Question id: 15879

#Section 6: Plant, Animal and Microbial Biotechnology

During which Phase lasts about 3-4 cell generations (the time taken for doubling of cell number), and the duration of a cell generation may vary from 22-48 hr, depending mainly on the plant species?

TLS Online TPP Program

#Question id: 15880

#Section 6: Plant, Animal and Microbial Biotechnology

Which one types of culture is ideal for the determination of effects of individual nutrients on cell growth and metabolism.