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#Question id: 8918

In individual insects of some species, whole chromosomes that carry larval genes are eliminated from the genomes of somatic cells at the time of metamorphosis. A consequence of this occurrence is that

#SCPH28 | Zoology
  1. we could not clone a larva from the somatic cells of such an adult insect.
  2. such species must reproduce only asexually.
  3. the descendents of these adults do not include a larval stage.
  4. metamorphosis can no longer occur among the descendents of such adults.
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#Question id: 14282

#SCPH05 I Biotechnology

The oxygen transfer rate in an aerobic fermentation process does not depend on the
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#Question id: 15649

#SCPH05 I Biotechnology

A bacterial culture having a specific oxygen uptake rate of 5 mmol O2 (g DCW)−1 h−1 is being grown aerobically in a fed-batch reactor. The maximum value of the volumetric oxygen transfer coefficient is 0.18 s−1 for the stirred tank bioreactor and the critical dissolved oxygen concentration is 20% of the saturation concentration (8 mg L−1). The maximum density to which the cells can be grown in the fed-batch process, without the growth being limited by oxygen transfer, is approximately
TLS Online TPP Program

#Question id: 45

#I Life Science/ Life Sciences Group – I-V

What is the standard free-energy change, ΔG°, under physiological conditions (E. coli grows in the human gut, at 37 °C) for the following reaction? (Keq = 7.8 × 10^2)

Glucose + ATP → glucose 6-phosphate + ADP
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#Question id: 9162

#SCPH06 I Botany

If the direction of Earth's rotation reversed, the most predictable effect would be ________.
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#Question id: 13076

#SCPH05 I 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.