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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,

#SCPH28 | Zoology

  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: 1082

#SCPH06 I Botany

Which of the following is a type of signaling in which a cells respond to substrate that they themselves release ?
TLS Online TPP Program

#Question id: 2618

#SCPH01 Biochemistry

The three genes (lacZ, lacY, and lacA) are transcribed as a single mRNA from the promoter, these genes are expressed at high levels only when
TLS Online TPP Program

#Question id: 15697

#SCPH01 Biochemistry

Which of the following does not describe PAM matrices?
TLS Online TPP Program

#Question id: 15479

#SCPH28 | Zoology

Out of the following what usually supports the fastest growth rate and is therefore considered the preferred nitrogen source for E. coli
TLS Online TPP Program

#Question id: 4927

#SCPH28 | Zoology

following cross were allowed

I-Recessive phenotype female X Dominat phenotype male = all recessive phenotype

II-Recessive phenotype male X Dominat phenotype female = all dominant phenotype

Which of the following conclusion?