TLS Online TPP Program

#Question id: 3277


Which of the following describes the most likely order of events in allopatric speciation?

#Section 3: Genetics, Cellular and Molecular Biology
  1. genetic drift, genetic isolation, divergence

  2. genetic isolation, divergence, genetic drift

  3. divergence, genetic drift, genetic isolation

  4. genetic isolation, genetic drift, divergence

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TLS Online TPP Program

#Question id: 12732

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

When the absorbance of DNA at ____ nm increases as the DNA becomes denatured , the phenomenon known as the ______.

TLS Online TPP Program

#Question id: 13076

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

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: 11531

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

Auxin bioassays are used to detect____

TLS Online TPP Program

#Question id: 27325

#Section 5: Bioprocess Engineering and Process Biotechnology

if the initial substrate concentration is 15 g/L and initial biomass concentration is 0.1 g/L. The substrate is then consumed completely and produces 6.4 g/L of biomass. The yield coefficient will be

TLS Online TPP Program

#Question id: 11468

#Section 3: Genetics, Cellular and Molecular Biology

Elaioplast plastids stores