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TLS Online TPP Program

#Question id: 13032

In SDS-PAGE, protein sample is first treated with detergent sodium dodecyl sulfate (SDS), in order to

#SCPH05 I Biotechnology
  1. Make the protein become negatively charged.
  2. Make the protein become positively charged.
  3. Renature the protein.
  4. Adjust the pH of protein.
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TLS Online TPP Program

#Question id: 2662

#SCPH06 I Botany

In the tryptophan operon, tryptophan serves as ________________.
TLS Online TPP Program

#Question id: 4577

#SCPH05 I Biotechnology

Which of these is a statement that Darwin would have rejected?
TLS Online TPP Program

#Question id: 3054

#SCPH06 I Botany

A pure culture in exponential growth phase has a bacterial concentration of 6.4 x 10^8 cells/ml. If the bacterium has a generation time of 1 h, how long ago was the cell concentration 8.0 x 10^7 cells/ml?
TLS Online TPP Program

#Question id: 11547

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

A cluster of tumor cells that produces and secretes growth factors to induce surrounding cells to grow and divide is showing which type of cell-to-cell signaling?
TLS Online TPP Program

#Question id: 14112

#SCPH05 I Biotechnology

Proteomics refers to the study of __________.