A microarray known as a GeneChip, with most now known human protein coding sequences, has recently been developed to aid in the study of human cancer by first comparing twothree subsets of cancer subtypes. What kind of information might be gleaned from this GeneChip to aid in cancer prevention?

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#Question id: 13063

#SCPH06 I Botany

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.

Which of the statement is worng? Aminopetrin………s

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#Question id: 18700

#SCPH01 Biochemistry

A student adds Taq Polymerase, nucleotides, and primer to a test tube. What procedure are they most likely going to do next?

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#Question id: 3442

#SCPH06 I Botany

You discover a rare new bird species, but you are unable to observe its mating behavior. You see that the male is large and ornamental compared with the female. On this basis, you can probably conclude that the species is

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#Question id: 24442

#SCPH01 Biochemistry

Match the following Column I with Column II 

Column I	Column II
A. PR segment	i. Plateau portion of the ventricular action potential
B. PR interval	ii. Conduction through atrioventricular node
C. ST segment	iii. The time from initial depolarization of the atria to initial depolarization of the ventricles
D. ST interval	iv. An isoelectric portion of the QT interval

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#Question id: 680

#SCPH05 I Biotechnology

Super secondary structures that contain recognizable combinations of α-helices, β-strands and loops (e.g. the Greek Key) are called ________.