A cluster of genes that comprises one part of the Hox gene clusters (the HOM-C complex) in Drosophila, known as:

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#Question id: 13057

#SCPH05 I Biotechnology

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.

How primer concentration leads to decrease in PCR efficiency?

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#Question id: 2949

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

A culture of cells is given 3H-thymidine for 30 minutes; then a sample of the cells is fixed and examined by autoradiography. It is found that:

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#Question id: 15714

#SCPH28 | Zoology

Which component in the medium is reported to counteract the inhibitory effect of auxin and promotes bud formation in the absence of cytokinin.

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#Question id: 4153

#SCPH01 Biochemistry

Ubiquitin-mediated protein degradation is a complex process, and many of the signals remain unknown.  One known signal involves recognition of amino acids in a processed protein that are either stabilizing (Ala, Gly, Met, Ser, etc.) or destabilizing (Arg, Asp, Leu, Lys, Phe, etc.), and are located at:

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#Question id: 105

#SCPH05 I Biotechnology

Isoprenoids are lipids which neither contain nor are derived from fatty acids and include

A) steroids.

B) waxes.

C) terpenes.