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Created with Fabric.js 1.4.5 Albinism is a genetic condition, a mutation. It's a deficit in the production of melanin by partial or complete pigment in skin, hair, and eyes Albino Humans People with Albinism are very pale with fair hair and very light eyes Albinism can be found in humans, mammals, birds, fish, reptiles, and amphibians About 1/17,000 people in the US have some type of Albinism Albino Humans Symptoms Symptoms Little to no pigmentation in their eyes, skin, and hair In some cases their eyes can be reds or purple, because the eyes are so light in pigmentation that the blood vessels show through the iris Often have vision problems Very susceptible to sunburns and skin cancers Types of Albinism Types of Albinism An individual with complete absence of melanin is an Albino, while a person with small amount of melanin is a Albinoid melanin- the pigment that gives skin, hair and eyes their color. Ocular Albinism -Only affects eyes-No affect on hair or skin- X-linked chromosomal -Mostly in males Oculocutaneous Albinism -Most common type-Affects skin, eyes, and hair -Has two sub groups (OCA1a, and OCA1b) OCA1a-No pigment -No active Tyrosinase OCA1b-Some residual Tyrosinase -Some pigment -decreased pigmentation at birth may better throughout their lives-They may have the ability to tan from sun OCA2-Affects the p-protein -Common in African descent -Some pigmentation but typically do not tan Hermansky-Pudlak Syndrome -Rare-Mainly with Porto Rican descent -may involve bleeding disorders,bruising, lung problems, and intestinal disorders Chediak- Higashi Syndrome -Rare-Abnormality in certaintypes of white blood cells, lowering resistance to infection Griscelli Syndrome -Extremely rare-Only 60 known cases worldwide-involves immunodeficiency and may have associated neurological problems Albinism can occur in any race What causes Albinism? What causes Albinism? Albinism is a recessive trait A person without albinism can be carrying the trait Both parents must carry a defective to have a child with albinism So, albinism is caused when both parents have a recessive gene for albinism, only then can the child have the domiannt gene Researchers have identified several genes that result in albinism, these genes are located on Autosomal chromosomes Autosomal chromosomes are the chromosomes that contain genes for several body chromosomes double click to changethis text! Drag a cornerto scale proportionally. Key25% will have albinism 25%won't have albinism50% won't carry the gene Chances of being an ablino That's about 117,648 people The child on the left has Ocular Albinism, while the girl on the right has Oculocutaneous Albinism These two boys are twins Many albinos get really bad sunburns, when exposed to too much sun Sources: Reilly Elizabeth. Albinism, December 2,2014. none.Courtney Scottish, albino eyes, no date, University if Edinburg Not cited. n.d. Genetics and Types of Albinism. Nodquivst, Christan. September 9, 2014. "What's Albinism? What causes albinism. (Color coded with paragraphsbelow)
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