Antigenic

Organisms employ different strategies to boost its defenses against antigens. Humans have an immune system to combat pat..

This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..

Part of the genetic information is devoted to the synthesis of proteins. mRNA, a type of RNA, is produced as a transcri..

While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..

Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..

The kidneys are responsible for the regulation of water and inorganic ions. Read this tutorial to learn about the differ..

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