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TLS Online TPP Program

#Question id: 1975

Which of the following differentiates T cells and B cells?

#Unit 4. Cell Communication and Cell Signaling

  1. T cells but not B cells are stimulated to increase the rate of their cell cycles.

  2. Only B cells are produced from stem cells of the bone marrow.

  3. B cells but not T cells can directly attack and destroy invading pathogens.

  4. T cells but not B cells have surface markers

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TLS Online TPP Program

#Question id: 12868

#General Aptitude

If the radius of the base of a cone be 7 cm and its curved surface area be 550 sq. cm, then the volume of the cone is
TLS Online TPP Program

#Question id: 2199

#Unit 2. Cellular Organization

Which of the following is not an example of an ion transporter?
TLS Online TPP Program

#Question id: 11288

#Unit 10. Ecological Principles

Below is a table showing the number of species and actual food web links observed in three different ecosystems. By calculating connectance as a measure of relative complexity of food webs, which of the following ecosystem are more complex? 
TLS Online TPP Program

#Question id: 1851

#Unit 4. Cell Communication and Cell Signaling

Which of the following is a feature of a Salmonella-based vaccine expressing antigens from other infectious agents?
TLS Online TPP Program

#Question id: 9598

#Unit 6. System Physiology – Plant

In the oxidized state, reaction centre chlorophylls contain an unpaired electron, Molecules with unpaired electrons can often be detected by a magnetic-resonance technique known as