Sensory transduction of light in the vertebrate retina is accomplished by ________.

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#Question id: 20847

#SCPH01 Biochemistry

In groundwater hydrocarbon spill which metal reduction was the major electron accepting process?

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#Question id: 13054

#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.

What would the expected effect be on a PCR reaction if the primers used were slightly shorter and more variable than the intended oligonucleotide sequences?

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#Question id: 10547

#SCPH05 I Biotechnology

Which of the following responses are incorrect for closing of stomata?

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#Question id: 12750

#SCPH28 | Zoology

Bacterial culture was treated with SDS and NAOH then centrifuged, supernatant was decanted and treated with potassium acetate and centrifuged to get a pellet. What is the composition of the pellet?

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#Question id: 3451

#SCPH06 I Botany

Individual A can derive fitness benefit of 220 units by helping Individual B, but incurs a fitness cost of 50 units in doing so following Hamilton’s rule, which of the following relation is not apply for altruism?