Prion protein is a normal constituent of brain tissue in all mammals which of the following statements are correct regarding prion protein

a) Strains of mice lacking the gene for PrP suffer no obvious ill effect

b) Illness occurs only when the normal cellular PRP or prpc occurs in an altered confirmation called PrPsc

c) The interaction of prpsc with the prpc converts the letter to prpsc initiating a Domino effect in which more and more the brain proteins converted to the disease causing form

d) the structure of prpsc is very different with much of the structure converted to amyloid like Alpha sheet.

TLS Online TPP Program

#Question id: 3948

#Unit 3. Fundamental Processes

The following complex of macromolecules is found in a cell: DNA attached to RNA polymerase, attached to a growing chain of RNA, attached to a ribosome, attached to two tRNAs, attached to a growing chain of amino acids. The cell must be:

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#Question id: 1262

#Unit 4. Cell Communication and Cell Signaling

Although MAP kinase is often activated in multicellular animals by RTKs or cytokine receptors, signaling from other receptors can activate MAP kinase in other eukaryotic cells. we consider the mating pathway in the yeast S. cerevisiae, a well-studied example of a MAP kinase cascade linked to G protein–coupled receptors (GPCRs). Which of the following statement is incorrect?

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#Question id: 18660

#Unit 13. Methods in Biology

In Gradient Gel system gel from 5 to 25 % is used, which created sieving effect due to this effect

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#Question id: 26819

#Unit 8. Inheritance Biology

Deletions or Large aberrations can be detected by examination of mitotic chromosomes for high resolution of banding pattern with banding agent such as

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#Question id: 24663

#Unit 2. Cellular Organization

 In what way do the membranes of a eukaryotic cell vary?