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TLS Online TPP Program

#Question id: 2052

Why have pigs have been proposed as a source of organs for xenotransplantation to humans?

#Unit 4. Cell Communication and Cell Signaling

  1. They do not pose a risk of zoonoses

  2. Their cell surface glycoproteins bear galactose α-1,3-galactose structures

  3. They lack endogenous virus sequences

  4. Their hearts are an appropriate size and the pigs can be genetically modified to limit the possibility of hyperacute rejection

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TLS Online TPP Program

#Question id: 18947

#Unit 13. Methods in Biology

Separation of lipopolysaccharides and high molecular weight polysaccharides using thin layer
TLS Online TPP Program

#Question id: 11287

#Unit 10. Ecological Principles

What is value of evenness in community 3 and 4 respectively?


TLS Online TPP Program

#Question id: 10257

#Unit 1. Molecules and their Interaction Relevant to Biology

Lattice energy is inversely proportional to sum of radii of
TLS Online TPP Program

#Question id: 1249

#Unit 4. Cell Communication and Cell Signaling

As in all G protein–coupled signalling pathways, timely termination of the rhodopsin signalling pathway requires that all the activated intermediates be inactivated rapidly, restoring the system to its basal state, ready for signalling again. Which of the following mechanism does not terminate rhodopsin signalling?
TLS Online TPP Program

#Question id: 28598

#Unit 2. Cellular Organization

There are some given D cyclins in mammals, except?