Linear chains of amino acids that singly or in multiples of two or more form into proteins. Chains of just two amino acids are called, chains of three are, and any more are polypeptides.inear chains of amino acids that singly or in multiples of two or more form into proteins. Chains of just two amino acids are called, chains of three are, and any more are polypeptides.
Vitiligo: A Common Cause of Loss of Skin Pigment. Melanin is the pigment that gives the skin its characteristic color. Vitiligo is caused by a loss of pigment in the skin, due to destruction of pigment-forming cells known as melanocytes. Although vitiligo affects all races equally, it is more noticeable in dark-skinned people. Vitiligo can cause cosmetic problems.
Here, you will learn about the hereditary nature of this skin disorder. Vitiligo and heredity: Studies linking vitiligo to genetics are still inadequate as only 0.75% of the population is affected by this disorder.In addition, very few vitiligo patients are unaware of other family members having the disease.itiligo may have a lot of different causes. The main basis of this condition is melanin deficiency. This can be triggered either by some chemical reaction or hormonal change, or due to some infection of the skin. Vitiligo is often thought to be hereditary.