Can the mother or father donate blood to the child? Why or why not? Genes inherited on the X chromosomes code for traits. How is genetic variation produced in meiosis? There are blue eyes, green eyes, brown eyes, and more. What gives eyes their color? Th...
Melanin is the name of the biological pigment that determines the general color of skin and hair in humans. Forms of melanin are responsible for coloration throughout the animal world; for example, wing coloration in birds is produced by melanin. In addition, the cells that produce melanin, ca...
What is melanin and why is it important? Pigments: A pigment may be defined as a molecule or material that is able to change the color of reflected or transmitted light due to its selective absorption of light wavelengths. In biology, pigment is found in the fur, skin, hair, and eye co...
If melanin is responsible for our skin coloring AND HAIR color, can taking a supplement help premature graying of your hair? Byanon2071— On Jun 26, 2007 i am having serious trouble tanning i spend all day in the sun everyday and i don't get any color what so ever.i recently had br...
What Is Melanin? How Does Melanin Affect Skin Color? Why Are There Different Skin Colors? The Need For Vitamin D The Genetic Side Of Things The expression of pigment is controlled by six maingenesin the body, and this genetic makeup is largely determined by your parents and the generations...
Vitiligo is a disorder of depigmentation affecting up to two percent of the global population. It is a long-held belief that patients with vitiligo have an increased risk for skin cancers due to the loss of melanin, a pigment which protects the skin against carcinogenesis. Phototherapy, a main...
Pigmentation is caused by the distribution of melanin, a black or brown pigment molecule, under your skin. This pigment exists to protect your skin cells from the sun, and everybody has it. But normally, we don’t notice a nice, even distribution of melanin. We just like how it looks—...
Evolution over hundreds of thousands of years is responsible for the diverse palette of human skin tones that we see across the world today. It’s theorized that our ancestors developed dark, permanent pigment in their skin, called melanin, as a form of natural protection against the sun. ...
Like melanotan I, this analog is more potent than natural α-MSH but has more side effects because it is less receptor-specific. In addition to stimulating increased melanin production, this molecule decreases appetite and increases libido. The Melanotan-1 and Melanotan-2 molecules were originally...
Albinism is a genetic condition causing a lack of melanin, resulting in white or pale skin and hair, while melanism is an overabundance of melanin, leading to dark pigmentation in skin, hair, or feathers.