In rats‚ black color is dominant and white color is recessive. Cross heterozygous black rat with a white rat B=black b=white Bb x bb B b b P: 2/4 black‚ 2/4 white 1:1 b Bb bb Bb bb G: 2/4 Bb 2/4 bb 1:1 Can two white rats have a black offspring? Show the Punnett Square to confirm your answer B=black P: 4/4 white b=white 1:0 bb x bb 2 white rats G: 4/4 bb b b 1:0 b b bb bb bb bb NO‚ 2 white rats cannot have a black offspring. In humans the ability to taste a certain chemical
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In one to three percent of Huntingtons Disease patients‚ have no family history of HD (HuntingtonsDisease1). Huntington’s disease is a very inconvenient and frustrating disease‚ scientists are trying to create treatments and a cure for Huntington’s disease. The one problem with finding a cure is the lack of funding‚ with your help though‚ there is hope. HD dose not have a cure‚ but knowing what it is‚ the history‚ current treatment‚ may help scientists find a cure and provide more funding for research
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Huntington disease Email this page to a friendShare on facebookShare on twitterBookmark & SharePrinter-friendly version Huntington disease is a disorder in which nerve cells in certain parts of the brain waste away‚ or degenerate. The disease is passed down through families. Causes Huntington disease is caused by a genetic defect on chromosome 4. The defect causes a part of DNA‚ called a CAG repeat‚ to occur many more times than it is supposed to. Normally‚ this section of DNA is repeated 10
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Huntington’s disease affects the body’s ability to think‚ talk and move. On average‚ the disease develops from 30-50 years old‚ however‚ can develop earlier or later. Specific affects‚ or symptoms‚ of Huntington’s Disease include: Poor memory‚ depression and/or mood swings‚ lack of coordination‚ twitching or other uncontrolled movements‚ and difficult walking‚ speaking and/or swallowing. As the disease progresses‚ eventually the person affected will need assistance performing simple tasks‚ such as
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nHuntington disease WHAT IS HUNTINGTON DISEASE? Huntington disease is an inheritable dominant progressive brain disorder that causes uncontrolled movements‚ emotional problems and loss of thinking ability. It affects the part of the brain that controls thinking‚ emotion and movement. The most common form of this disorder usually appears in a person’s 40’s and 50’s. Huntington disease affects an estimated 3 to 7 per 100‚000 people. It affects both men and women equally. The disorder appears to
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What Did Dinosaurs Really Look Like? In a luminous top-floor workshop closed to the public at the American Museum of Natural History in New York‚ artists work with scientists to re-create scenes from lost or vanishing worlds. This is the birthing room for the museum’s elaborate dioramas‚ such as the brace of Northwest Indians who air-paddle their canoe through a fluorescent entrance hallway‚ or the 94-foot blue whale that swoops down from the duplex ceiling of the Ocean Life Hall‚ or the herd
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fragile-x‚" 2008). Huntington’s Disease (HD) is an autosomal dominant pattern of inheritance. Males and females are equally likely to inherit the mutant gene. The change in the gene takes place when the gene is passed from parent to child. Nontraditional inheritance plays a role in the development of HD when symptoms appear at an earlier age with each generation. The mutant genes repeat more times than the usual number in normal copies of these genes. It is not clear what causes a trinucleotide repeat
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Huntington disease Background‚ Etiology‚ & Epidemiology In the late 19th century‚ a physician by the name of George Huntington published the first paper detailing the clinical presentation of a neurological disorder that would come to bear his name. Although Huntington was the first to suggest genetic transmission of Huntington disease (HD)‚ it wasn’t until 1993 that the specific mutation responsible for this disease was discovered.1 Huntington disease is an autosomal dominant disorder caused by
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Huntington’s Disease or Alzheimer’s Disease? As the body ages through time‚ many of the functions will slowly begin to diminish and deteriorate‚ including the nervous system. The nervous system is made up of your brain and the many different neurons that transmit signals to and from the body. One of the most common ways the nervous system deteriorates is when the connections between two neurons diminish‚ or build plaque. The brain uses neurons to send signals to each other‚ in order to get our
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When I think of how the world might change in the future I feel pretty optimistic. I think it would be very interesting to know how the future will look like but at the same time I’m afraid of it. Will there be some things that would change my life forever? Do we still live on planet earth? Or on another planet? So many questions which answers I can only guess. The majority of people on Earth is living in cities and towns nowadays so it’s not wrong to think about future development of cities
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