Practice Questions

TLS Online TPP Program

#Question id: 13041

Which of the following is incorrect about Data Collection?

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

The two-color microarray uses multiple dyes at times
The most common type of microarray protocol is the two-color microarray
The cDNAs are obtained by extracting total RNA or mRNA from tissues or cells and incorporating fluorescent dyes in the DNA strands during the cDNA biosynthesis
The expression of genes is measured via the signals from cDNAs hybridizing with the specific oligonucleotide probes on the microarray

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TLS Online TPP Program

#Question id: 15874

#Section 6: Plant, Animal and Microbial Biotechnology

Callus culture show numerical chromosomal changes such as;

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?