TLS Online TPP Program

#Question id: 5303


Which of the following statements defines proteomics?

#Unit 11. Evolution and Behavior
  1. It is the linkage of each gene to a particular protein.

  2. It is the study of the full protein set and its properties.

  3. It is the totality of the functional possibilities of a single protein.

  4. It is the study of how amino acids are ordered in a protein.

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TLS Online TPP Program

#Question id: 15863

#Unit 12. Applied Biology

what is protoplast?

TLS Online TPP Program

#Question id: 34177

#Unit 3. Fundamental Processes

Which of the following combination of the statements regarding polA mutants is correct
A. fail to join their Okazaki fragments 
B. fail to removes the RNA primer
C. fail to removes the mismatch errors
D. fail to synthesis Okazaki fragments 

TLS Online TPP Program

#Question id: 13054

#Unit 13. Methods in Biology

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?

TLS Online TPP Program

#Question id: 1936

#Unit 4. Cell Communication and Cell Signaling

Stimulation of a single B cell would result in the generation of a clone of cells having_____

TLS Online TPP Program

#Question id: 7103

#Unit 5. Developmental Biology

Patterning of the Xenopus mesoderm along the dorso-ventral axis involves an antagonistic relationship between chordin and BMP-4. Is there an analogy here to dorso-ventral patterning in the Drosophila embryo?