Albinism is an inherited genetic condition that reduces the amount of melanin pigment formed in the skin, hair and/or eyes. Albinism occurs in all racial and ethnic groups throughout the world. In the U.S., approximately one in 18,000 to 20,000 people has some type of albinism.
pyranose is a collective noun of carbohydrates that have a six membered ring system which is 5 carbons and one oxygen. example: glucose Furanose is a collective noun of carbo â¦ hydrates that have a five membered ring system which is 4 carbons and one oxygen..when the cyclic sturcture of glucose(hexose) is six-membered ring resembling the pyran ring, thus they are called pyranose.
Pyrazine, any of a class of organic compounds of the heterocyclic series characterized by a ring structure containing four atoms of carbon and two of nitrogen. The pyrazine ring is part of many polycyclic compounds of biological or industrial significance. The simplest member of the pyrazine family is pyrazine itself, a colourless, water-soluble solid with molecular formula C4H4N2.