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TLS Online TPP Program

#Question id: 1034

A new drug is developed that targets and binds to the lipid A portion of LPS from Gram negative bacterial cells. This drug shows a high degree of activity and binding in a test tube setting against purified lipid A. Based on this information,

#SCPH06 I Botany

  1. we should fast track this drug and get it out to physicians immediately to help prevent toxic/septic shock in humans.

  2. we should do some animal testing with whole Gram-negative cells and the drug before we jump to any conclusions.

  3. we should next proceed by moving to testing in a test tube using whole Gram-negative cells to see if it binds with the same strength.

  4. we should abandon the drug entirely. Binding to lipid A won't kill the bacteria, so the drug is useless to develop further. It wouldn't help humans who have septic shock at all.

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TLS Online TPP Program

#Question id: 2654

#SCPH05 I Biotechnology

Regulation of the lac operon can be envisioned as regulation of enzyme synthesis by its
TLS Online TPP Program

#Question id: 96

#SCPH05 I Biotechnology

A reducing sugar is one that
TLS Online TPP Program

#Question id: 40

#SCPH05 I Biotechnology

Given that the standard free-energy change for the reaction glucose + Pi → glucose 6-phosphate is 13.8 kJ/mol, and the standard free-energy change for the reaction ATP → ADP + Pi is −30.5 kJ/mol, what is the free-energy change for the reaction glucose + ATP → glucose 6-phosphate + ADP?
TLS Online TPP Program

#Question id: 7305

#SCPH06 I Botany

In plants, a growing mass of unorganized and undifferentiated cells that cover a wound; these cells can be induced to form a plant meristem and develop into shoots and/or roots called as
TLS Online TPP Program

#Question id: 1599

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

Name the class of MHC which is recognized by CD4 TH cell.