In this essay we will discuss about the molecular structure of Immunoglobulin in human body. The human body is capable of synthesising more than a million different kinds of immunoglobulin molecules, each capable of reacting with a different antigen, but all of them appear to share the same fundamental quaternary (globular) structure. Typically, an immunoglobulin molecule is a Y-shaped heteromer [...]
In this article we will discuss about the major histocompatibility in human body and its classes. B and T cells contain membrane receptors that react with specific antigenic determinants. B cells are activated by interaction with the antigen either in its dissolved form or while it is still a part of the surface of the pathogen. In contrast, the T [...]
In this article we will discuss about the syndromes of abnormalities that occurs in humans. 1. Autosomal Trisomy: a. Down's Syndrome (DS) or Trisomy-21: Down's syndrome is named after the physician J. Langdon Down who first described this genetic defect in 1866 and it was formerly called mongolism or Mongolian idiocy. It is usually associated with a trisomic condition for [...]