Tagged: keratin

July 29, 2018

DNA, Ribonucleic acids (RNAs), proteins synthesis and types

There is common plan for construction of the thousands kinds of proteins that are found in the living systems (living organisms’ bodies), The protein is composed of 20 types of amino acids that have...

Biology

January 3, 2018

Important excretory organs in man’s body & Structure of urinary system

The biological processes that occur in the bodies of the living organisms are carried out through the chemical reactions that leave some waste products , The living organism must get rid of these waste...