Both drugs had been previously recommended for approval 14-0 by members of FDA's Anti-Infective Drugs Advisory Committee. The significance of two new antibiotics in four weeks? We've recently been averaging one antibiotic every three years.
More melanin presence in the skin makes the skin appear black, and less melanin will make the skin appear less black. White people have very little melanin synthesized by their skin. So, the color of the races is because of some difference in the quanitity of the melanin pigment in our body. That is all.
one subgroup of the cloned genes is related to melanosomes and their precursors melanosomes are the granules within melanocytes where melanin is synthesized in humans melanin is the primary determinant of skin color and is also found in hair and the iris the most common form of biological melanin is eumelanin a brown black polymer of dihydroxyindole carboxylic acids and its reduced forms most eumelanins are derived from the amino acid tyrosine