1. Lynn Margulis developed the theory of endosymbiosis. 2. Endosymbiosis is when one organism symbiotically lives inside another organism. 3. According to this theory, mitochondria evolved from a bacteria that causes typhus. 4. This theory says that chloroplasts came from cyanobacteria. 5. The genetic resemblance of mitochondria and chloroplasts to certain bacteria supports the endosymbiosis theory. The DNA within mitochondria and chloroplasts is also different than the DNA of the cell. 6. The
for making myelin sheaths (oligodendrocytes), cannot complete the task. When babies are born they may not show any signs at all until the first few months. This disease is only inherited and categorized under a group of diseases called leukodystrophies. Leukodystrophies gets its name because it means there is a degeneration of myelin, which is a fatty cushioning that shields nerve fibers. This makes the nerve signals very difficult to transmit. People with Canavan Disease life span can range from a
Multiple sclerosis Definition: Multiple Sclerosis is a demyelinating disease cause a widespread degeneration of the central nervous system (CNS) which gradually results in severe neurological deficits. The disease is characterized by remissions and relapse, erratic onset and duration is flare up acutely. Each relapse may involve different area in white matter in central nervous system (CNS) . Etiology: There is may involve in genetic and environmental factor, which may cause immunologically
Cameron Alexander Mrs. Schroll 3rd period Monday, May 5th Canavan disease Canavan disease is an inherited disorder that causes progressive damage to the nerve cells in the brain. It is in the group of rare genetic disorders called Leukodystrophies. Leukodystrophies are characterized by the degeneration of myelin, which is the fatty covering that insulates nerve fibers. The myelin is necessary for rapid electrical signals between the neurons. I chose this disease because I had never heard of it and
ABSTRACT Canavan disease (CD) is fatal neurological disorder. CD is progressive disease caused by an inherited genetic abnormality affecting the growth of the myelin sheath, classifying it as an autosomal recessive leukodystrophy. This disease is linked to mutations in the gene which directs the enzyme aspartoacylase (ASPA) allowing a buildup of N-acetylaspartic acid (NAA) in the brain. Deficiency in this activity leads to spongiform degeneration of the white matter (myelin) of the brain. Myelin
inherited, disorder that leads progressive brain disorders, failure of the adrenal glands and eventually death.”(The New York Times) ALD is a in a group of inherited disorders called leukodystrophys it is a group of disorders characterized by progressive degeneration of the white matter of the brain. (Leukodystrophys.) ALD has many different symptoms; some of the symptoms can be triggered as early as two years or as late as twelve but, the normal symptoms start between the ages of 4 to 10 and can
Imagine a child named Jacob and he wakes up one day and he couldn’t see 10 feet ahead of him and he didn’t hear his blaring loud alarm go off. For some reason everything is perfectly silent and he cant get up or even roll of his bed. Jacob starts to realize something has to be very wrong. Boisterously he yells for his mom but he couldn’t even hear himself yell, and then he starts spasming and shaking and blank out. He had a sezior when he wakes up he is in a hospital and his mom is crying. Then
are fortunate surpass this expectancy (Rathore). Progeria is in a group of rare genetic disorders, called laminopothies, which affects genes that encode proteins. Some diseases associated within this group are muscular dystrophy, lipodystrophy, leukodystrophy, diabetes and others. Malfunctioning of the arteries, or arteriosclerosis, is the leading cause of death in progeria. There are plenty of symptoms identified with progeria. Children, at birth, appear normal with early integumentary symptoms, comparable