If bacteria grow in the presence of a large amount of DNase, which of the following recombination process completely inhibited?

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#Question id: 19381

#SCPH28 | Zoology

Glyphosate resistance in plants can be generated by expressing in them transgenes that serve one of the following three purposes: 

(1) Overproduction of EPSPS enzyme 

(2) Encode an EPSPS enzyme that is tolerant to glyphosate

(3) Produce an enzyme that inactivates glyphosate

(4) Use a combination of the strategies (2) and (3)

Which of the above strategies can be used to make plants glyphosate resistant?

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#Question id: 18384

#SCPH01 Biochemistry

Halocarbons are widely used as

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#Question id: 311

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

Which of the following has no contribution to the stability of tRNA?

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#Question id: 10778

#SCPH05 I Biotechnology

Essential oils are the mixture of volatile,

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#Question id: 13062

#SCPH01 Biochemistry

Precision will be reduced, but yield will be increased

Optimisation of a PCR reaction is often a compromise between the competing demands for precision, efficiency and yield. Although the specific effects may vary, generally, increasing the annealing temperature will increase non-specific primer binding and reduce precision. Increasing the length of the elongation phase will reduce the proportion of incomplete newly-synthesised strands and therefore increase yield. In this case, the potential effect on efficiency is unclear. Increasing the elongation phase would increase the reaction time, but the time taken to ramp down to a lower annealing temperature would be reduced.

A restriction enzyme cleaves a circular plasmid vector to produce fragments : 1kb, 0.3kb, 2kb, 1kb and 0.3kb. How many bands will be visible on agarose gel?