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#Question id: 364


 A solution contains 0.0000001 (10-7) moles of hydrogen ions [H+] per liter. Which of the following best describes this solution?

#XL - Q Biochemistry
  1. acidic: H+ acceptor

  2. basic: H+ acceptor

  3. acidic: H+ donor

  4. neutral

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#Question id: 5742

#XL - S Microbiology

When an allotetraploid (AABB) is backcrossed to one of its progenitor species (AA), a sterile progeny is produced.  The genomic composition of this sterile individual can be best represented by

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#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.

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#Question id: 14998

#XL - T Zoology

You set up a monohybrid cross between true breeding round winged and true breeding oval winged insects. Your F1 offspring have round wings, and you collect the following numbers of F2: Round wings: 302; Oval wings: 86. Which of the following statements is NOT correct?

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#Question id: 19644

#XL - P Chemistry

When acetylene is treated with HBr, the product is ———-

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#Question id: 462

#XL - S Microbiology

The formation of acetyl CoA is driven to completion by