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TLS Online TPP Program

#Question id: 4319

Why are BRCA1 and BRCA2 considered to be tumor-suppressor genes?

#Molecular Biology

  1. Their normal products participate in repair of DNA damage.

  2. The mutant forms of either one of these prevent breast cancer.

  3. The normal genes make estrogen receptors.

  4. They block penetration of breast cells by chemical carcinogens.

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TLS Online TPP Program

#Question id: 1684

#Immunology

What are the molecules mediating signal transduction following antigen binding to cell surface immunoglobulin on a B-cell called?
TLS Online TPP Program

#Question id: 1555

#Immunology

which type of amino acid in polypeptide position 9 is favoured interaction which MHC class 1?
TLS Online TPP Program

#Question id: 1685

#Immunology

The TCR for antigen is:
TLS Online TPP Program

#Question id: 1556

#Immunology

Which one of these is not a property of Antigen?
TLS Online TPP Program

#Question id: 1686

#Immunology

A hapten is best defined as being:
TLS Online TPP Program

#Question id: 1557

#Immunology

which one of these antibody can cross placenta?