TLS Online TPP Program

#Question id: 15543


In Benzer's intragenic mapping experiments, what event was required to allow production of infectious phage from rII mutants?

#SCPH12 I Genetics
  1. rII mutant strains with mutations in different genes.
  2. Homologous recombination between phage.
  3. Crossover Within the mutant gene, between the mutation.
  4. Crossover at one end of the mutant gene, outside the mutation.
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TLS Online TPP Program

#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?

TLS Online TPP Program

#Question id: 5050

#SCPH01 Biochemistry

A stem cell capable of producing all the cell types of a lineage(embryonic and extraembryonic) is said to be-

TLS Online TPP Program

#Question id: 833

#SCPH01 Biochemistry

Eubacteria Also Contain Self-Compartmentalized Proteases similar to proteosome in E.coli such as

TLS Online TPP Program

#Question id: 27773

#Research Methodology

________ research is concerned with qualitative phenomena.

TLS Online TPP Program

#Question id: 14287

#SCPH05 I Biotechnology

A chemostat is run with a feed rate of llitre/h when the volume of the reactor is also 1 litre. At steady state the doubling time of the cells in the chemostat is.....   h.