TLS Online TPP Program

#Question id: 35991


Which of the following statements about drying of foods are correct?

#XL - U Food Technology
  1. Spray drying is widely used for milk powder production.
  2. Freeze-drying retains more volatile compounds and nutrients compared to hot air drying.
  3. Drying reduces water activity (aw) and thereby inhibits microbial growth.
  4. Drying increases the water activity of food, making it more stable.
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TLS Online TPP Program

#Question id: 13076

#XL - Q Biochemistry

Restriction fragment length polymorphism denotes that a single restriction enzyme produces fragments of different lengths from the same stretch of genomic DNA of different strains of a species or from different related species. RFLPs are detected as follows:

i.  Large molecular weight genomic DNA is isolated from several strains or related species;

ii.  The fragments in these digests are separated through electrophoresis

iii.  These 'DNAs are then digested with a selected restriction enzyme

iv.  Exposed to a suitably radio-labelled appropriate DNA probe under conditions favouring DNA: DNA hybridization

v.  The resulting gel lanes are transferred and fixed to a suitable solid support and

vi.   The free probes are removed

vii.  The fragments to which the probe has hybridized are detected by filming them as distinct bands on a suitable photofilm through autoradiography.

TLS Online TPP Program

#Question id: 13077

#XL - S Microbiology

The DNA probes for RFLP may NOT be obtained from

TLS Online TPP Program

#Question id: 13078

#XL - S Microbiology

RFLPs have several unique advantages except this one;

TLS Online TPP Program

#Question id: 13079

#XL - S Microbiology

Name of that sophisticated equipment which used to the oligonucleotide, that serve as a primer in RAPDs is usually obtained by in vitro DNA synthesis,

TLS Online TPP Program

#Question id: 13080

#XL - S Microbiology

In RAPDs amplification will take place only of those regions of the genome that have the 

TLS Online TPP Program

#Question id: 13153

#General Aptitude

The in-radius of an equilateral triangle is of length 3 cm. Then the length of each of its medians is