Two cards are drawn at random from a pack of 52 cards. The probability that one may be a jack and other an Ace is

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#Question id: 13065

#Section 7: Recombinant DNA technology and Other Tools in 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.

Agglutination of antigens by utilising specific antibodies can only occur, if

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#Question id: 148

#Section 2: General Biology

The pKa of a certain weak acid is 4.0. Calculate the ratio of proton acceptor to proton donor at pH 7.0.

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#Question id: 18722

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Which DNA ligase enzyme is used in genetic engineering?

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#Question id: 27202

#Section 5: Bioprocess Engineering and Process Biotechnology

The rate constant for a first-order reaction is 4. 606 x 10^-3 s^-1. The time required to reduce 2.0 g of the reactant to 0.2 g will be:

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#Question id: 2337

#Section 3: Genetics, Cellular and Molecular Biology

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