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Ms. Martinez LSHS 2010 For hundreds of years, societies have maintained a certain fascination with the bizarre and the unknown. There are many conditions that happen to individuals, explained and unexplained… Let’s watch: http://abcnews.go.com/Primetime/Video/playerIndex?id=2264698 “The Wolfman” Hypertrichosis Hypertrichosis is a rare genetic disorder where individuals have: Excessive growth of hair Excessive hair in areas of the body that do not normally grow hair History of the Disease Hypertrichosis has attracted attention. Many affected individuals became “exhibitionists.” Russian, Theodoro Petrov, who was known as Jo-Jo the “Dog-Faced Boy.” As children, Danny Gomez and his brother, Larry, were exhibited like animals and called, “Wolf Children. ” How did the Gomez brothers Inherit Hypertrichosis? a little genetics…. DNA, Genes, and Chromosomes The DNA in your genes gives instructions that makes you who you are. Your body’s chromosomes contain about 40,000 genes. Everything has genes. Genes are sequences of DNA located on the chromosomes that determine which protein will be made. Genes cluster together to form a chromosome. Humans have 46 chromosomes or 23 pairs. Karyotypes Largest A karyotype is an organized profile of an individual’s chromosomes. Chromosomes are arranged and numbered by size, from largest to smallest. Smallest Humans have 46 chromosomes or 23 pairs in all diplod cells. Diploid cells are all cells EXCEPT the reproductive cells (egg and sperm). Remember, 2n=46 The first 22 of these pairs are called autosomes. The last pair of chromosomes are sex chromosomes, X and Y. An XX person = female An XY person = ”guy” Meiosis and Fertilization Meiosis is the process by which haploid gametes are formed. Gametes are sperm (male) and egg (female). Gametes are haploid cells because they have half the number of chromosomes Haploid cells are represented by n=23 During fertilization, haploid gametes (n) fuse to form a Zygote (2n). Danny Gomez received one set of chromosomes (haploid; n) from each parent: his mother (n) and his father (n) Danny (and all humans) are diploid (2n) organisms n=23 n=23 Haploid Haploid 2n=46 Diploid Sex-Linked Genes Remember the X and Y chromosomes? They have many other genes that are unrelated to gender. A gene on the X chromosome is called a sexlinked gene. Danny Gomez has Congenital Generalized Hypertrichosis, (CGH). CGH was passed from Danny’s mother to him. Sex-linked inheritance pattern from a heterozygote mother and unaffected father “Vampires” Legend tells us that vampires come out at night. Why? The sun will kill them. They seek fresh blood. Why? Their bodies dry up due to lack of blood New blood refreshes their bodies and gives them energy and certain powers. Porphyria The victims of the disease have been labeled “Vampires." This condition has affected all sorts of people including Mary, Queen of Scots and George III. Mary, Queen of Scots , 8 December 1542 – 8 February 1587) was Scottish queen regnant from 14 December 1542 to 24 July 1567. Queen Elizabeth I was her cousin. George III (George William Frederick; 4 June 1738 – 29 January 1820 was King of Great Britain and King of Ireland from 25 October 1760 until the union of these two countries on 1 January 1801, after which he was King of the United Kingdom of Great Britain and Ireland until his death. Porphyria is a very rare Dominant genetic disorder caused by problems breaking down important chemicals in the body called porphyrins. Individuals who have Porphyria have abnormal enzymes and the body cannot convert porphyrins into heme. In short, Heme is what keeps iron from rusting in our blood, which combines with globin to make hemoglobin, which is the thing in our red blood cells that carries oxygen. So Why the link between Porphyria and Vampires? Individuals with Porphyria have many of the following symptoms: Exceedingly sensitive to sunlight- exposure can cause burning of the skin and disfigurements such as scarring Noses and fingers may wither up and fall off Lips and gums may tighten up so much that the teeth project like fangs Reddish-brown urine and/or teeth Anemia Hundreds of years ago, victims might have tried to medicate themselves by drinking blood. “Smurfs” Yes, blue people exist here and there in the real world. There are two conditions that cause people to live and be (literally) blue: 1. Methemoglobinemia— genetic disorder 2. Argyria—chemical induced Methemoglobinemia Methemoglobinemia is a RECESSIVE blood disorder in which the blood carries less-thannormal amounts of oxygen, making the blood appear blue. Hemoglobin is the oxygen-carrying molecule found in red blood cells. People with Methemoglobinemia have an abnormal amount of hemoglobin built up in the blood. There have been reports of blue families through history that could be explained by inheriting the Methemoglobinemia gene. Martin Fugate emigrated from France in 1820 and married Elizabeth Smith, a Kentucky native. Apparently, both had the very rare recessive gene for Methemoglobinemia. Four of their seven children were blue! The family was known as the Blue Fugates of Kentucky. The exact reason for their color wasn’t known until medical tests were conducted in the 1960s. Just so you know… Methemoglobinemia in DOGS: is not a genetic disorder, but a symptom of poisoning. The main causes are: bad reactions to medications. accidentally swallowing human painkillers such as Tylenol or Advil. getting sprayed in the face by a skunk. Argyria Before the advent of antibiotics, silver nitrate and colloidal silver were used as antiseptics. Argyria is a condition caused by improper exposure to chemical forms of the element silver, silver dust, or silver compounds. The skin becomes blue or bluish-grey colored. Captain Fred Walters was prescribed silver as a remedy for a degenerative neural disease. At the time, the poisonous effects of silver were unknown. By 1891, he was exhibiting himself at side shows for profit. His heart gave out in 1923; he died of silver poisoning. Paul Karason began using colloidal silver 15 years ago by rubbing the concoction on his skin to treat dermatitis, and not by drinking it. Karason, who is sometimes referred to as “Papa Smurf” continues to drink colloidal silver as a cure-all. Rosemary Jacobs began using nose drops containing colloidal silver when she was 11 years old. Within a few years, her skin had turned blue. Jacobs is campaigning against colloidal silver dietary supplements because of what happened to her.