Melanin

Albinism is a genetic condition where people are born without their usual pigment in their body. Being albino gives you like a pale appearance it is also found in animals and plants. The eye will even look pink or red. Melanin is a chemical that we have in our body which is what is responsible for our eye, skin and even hair color. So when our body isn’t able to make a normal amount of melanin, or doesn’t produce any melanin at all is when they say someone is albino. Albinism is however said to be inherited from both parents which means a bad gene has been passed down. Also it can be a gene that the parents are carrying and pass it down. A test will be done to identify what gene it is. There are different types of albinism and it is known…

UVC. These waves are all classified by wavelengths, describing the distance between peaks in a sequence of rays. UVA has the longest wavelength and when exposed to human skin, it penetrates all the way to the dermis. UVB rays have short wavelengths and only penetrate the epidermis. UVC rays have the shortest wavelength, too short to penetrate the human skin. They are, however, absorbed by the ozone layer. When exposed to too much UVA rays, the dominant ray found in tanning beds, the melanocytes,…

Albinism in humans is a congenital disorder characterized by the complete or partial absence of pigment in the skin, hair and eyes due to absence or defect of tyrosinase, a copper-containing enzyme involved in the production of melanin. It is the opposite of melanism. Unlike humans, other animals have multiple pigments and for these, albinism is considered to be a hereditary condition characterised by the absence of melanin in particular, in the eyes, skin, hair, scales, feathers or cuticle.…

It is hypothesized that motor proteins, dynein and kinesin control the transport of melanosomes into melanocyte dendrites as it is the net sum of cytoskeletal forces on an organelle that regulate intracellular transport. Dynein typically walk towards the minus-end of a microtubule in retrograde transport while kinesin move towards the plus-end in anterograde transport in neurons. The purpose of the article was to determine the role and effect of cytoplasmic dynein in melanosome transport in…

These gene mutations come in the form of a skin pigment called melanin. Skin color is fundamentally based on the amount of melanin in the epidermis. [Roy] Melanin is produced by cells in the epidermis called melanocytes, which are specialized cells with photosensitive receptors that can detect the ultraviolet radiation from the sun. [Bindon] Melanocytes respond to the ultraviolet radiation by producing melanin, which can take two different forms: pheomelanin, which is a red to yellow color and…

imposing the question “What is your colour?”, the 135 personal color identity surpassed the five colors given by the census. The tubes of custom oil paint were designed by Varejão from the detailing of the cap to the way it was laid within an enclosed glass box on a wooden board. The exhibition set-up was simple and consistent from the layout of the paintings evenly spaced and laid side by side in a horizontal manner. “Polvo: mixed media”, the oil tubes, were set up on a podium in the center of…

Are purple eyes just legends? Research show that eye color is determined by the amount of melanin in the iris and the scattering light in someone's eyes. Research also shows that there are different counts of people developing purple eyes after birth. A study on Alexandria's Genesis shows that it is a very rare color in the eye's of almost all women only. So is it true? Many people do not believe that it is real because of all the outrageous effects that it has on some people who have…

Why we get sunburned A suntan is the result of the body’s defense mechanism against harmful ultra violet light emitted by the sun. All bands of UV radiation damage collagen fibers and accelerate aging of the skin. Both UVA and UVB destroy vitamin A in skin, which may cause further damage. UVB light can cause direct DNA damage. In defense, our body releases a pigment called melanin, which is produced by cells in our skin called melanocytes. Melanin absorbs ultraviolet light and dissipates it as…

Skin Discoloration Cell and natural present of human pigmentation has uncovered that there is a tall level of grouping in qualities accountable for shading and skin sort between and inside human masses. Those of European parentage show up the greatest blend of skin, hair and eye tints. The alleles that render every quality fundamental are portrayed, adjacent the phenotypic after effects of the causal single nucleotide polymorphisms. The art of pigmented wounds will be examined checking…

In Miyamuera’s (et al., 2010) study, the effects of various wavelengths of ultraviolet was compared through repeated exposure of human skin to suberythemal doses of ultraviolet A and/or ultraviolet B for two weeks. The study showed that in the ultraviolet B tanned skin; there was a higher melanin content and ultraviolet-protective effects against DNA damage as there was in the ultraviolet A tanned skin. The tanning from ultraviolet A was caused by the photooxidation of existing melanin and…