TLS Online TPP Program

#Question id: 377


The aqueous solution with the highest pH is:

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. 1 M NH3 (pKa = 9.25)

  2. 0.5 M NaHCO3 (pKa = 3.77)

  3. 0.1 M NaOH

  4. 0.001 M NaOH

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TLS Online TPP Program

#Question id: 5279

#Unit 8. Inheritance Biology

In a transduction experiment, phage P1 is grown on a bacterial host of genotype A+ B+ C+ and the resulting lysate is used to infect a recipient strain of genotype A– B– C–. The genes are in an order such that B is in the middle, and the distance between A and B is greater than the distance between B and C. Based on this information, which of the following least genotype?

TLS Online TPP Program

#Question id: 18681

#Unit 13. Methods in Biology

Highly heterogeneous mixtures of proteins such as cell lysates or tissue extracts should be completely fractionated into individual proteins so as to obtain an overall picture of the protein composition and to enable location of individual proteins. The highest resolution is obtained 

TLS Online TPP Program

#Question id: 2057

#Unit 4. Cell Communication and Cell Signaling

Lymph nodes and the spleen are the most highly organized secondary lymphoid organs. T-cell and B-cell activity are separated into distinct microenvironments in both. T cells and B cells  are found in

TLS Online TPP Program

#Question id: 31134

#Unit 2. Cellular Organization

For an organelle lumen or an extracellular space to become acidic, movement of protons must be accompanied either by movement of an equal number of anions in the same direction or by:

TLS Online TPP Program

#Question id: 11198

#Unit 7. System Physiology – Animal

The "undershoot" phase of hyperpolarization is due to ________.