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TLS Online TPP Program

#Question id: 1596

Which one of the following is function of Class III MHC genes?

#XL - S Microbiology

  1. predominantly on APCs (macrophages, dendritic cells, and B cells), where they primarily present exogenous antigenic

  2. glycoproteins expressed on the surface of nearly all nucleated cells

  3. presentation of endogenous peptide antigens to CD8+ T cells.

  4. immune functions, including components of the complement system and molecules involved in inflammation.

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TLS Online TPP Program

#Question id: 12064

#XL - R Botany

Which taxon of eukaryotic organisms is thought to be directly ancestral to the plant kingdom?
TLS Online TPP Program

#Question id: 3625

#XL - R Botany

If a heterozygous two recessive mutation at different site will give mutant phenotype when gene involved
TLS Online TPP Program

#Question id: 178

#XL - T Zoology

Given the pKa values of different acidic sites in cysteine, the principal ionic form which will never exist at any pH
TLS Online TPP Program

#Question id: 2393

#XL - Q Biochemistry

Where are proteins produced other than on ribosomes free in the cytosol or ribosomes attached to the endoplasmic reticulum?
TLS Online TPP Program

#Question id: 2122

#XL - S Microbiology

The inner (plasma) membrane of E. coli is about 75% lipid and 25% protein by weight.  How many molecules of membrane lipid are there for each molecule of protein?  (Assume that the average protein is Mr 50,000 and the average lipid is 750.)