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Klinefelter Syndrome -

... karyotype; a chromosome analysis usually done on a blood sample. Klinefelter Syndrome is caused by a chromosome variation involving the sex chromosomes. The person with Klinefelter Syndrome is a male who, because of this chromosome variation, has a hormone imbalance. While Dr. Harry Klinefelter accurately described this condition in 1942, it was not until 1956 that other researchers reported that many boys with this description had 47 chromosomes in each cell of their bodies instead of the usual number of 46. This extra sex (X) chromosome ca ...

Number of words: 930 | Number of pages: 4

Evolution

... 27 BIO-EVOLUTION: POPULATION vs. INDIVIDUALS ................ 29 MECHANISMS FOR GENETIC VARIATION .......................... 31 GENETIC VARIATION AND SPECIATION .......................... 35 DARWIN'S FINCHES .......................................... 37 SPECIATION vs. CONVERGENT EVOLUTION ....................... 39 CONCEPT OF ADAPTATION ..................................... 41 PUNCTUATED EQUILIBRIUM ....................................43 VALUE/LIMITATIONS: THE THEORY OF BIOLOGICAL EVOLUTION .... 45 ALTERNATE EXPLANATIONS OF BEING ...... ...

Number of words: 4241 | Number of pages: 16

Jaguars

... more difficult to separate, however the large head and stocky forelimbs are often a good way to differentiate between the two cats. In the wild, identification would not be an issue as the cats inhabit different continents - the jaguar is the only member of the panthera family to be found in the Americas and its is by far the biggest cat on the continent. The range, which once spanned from the southern states of the USA down to the tip of South America, now centres on the north and central parts of the South American continent. The jaguar ...

Number of words: 822 | Number of pages: 3

Acid Rain

... who suggested in, 1852, that sulfuric acid in Manchester, English, was causing metal to rust and dyed goods to fade. One source that causes acid rain are fossil fuel. Fossil fuel has many usage in our society. Such as to power electric power plants, industrial boilers, smelters, businesses, schools, homes and vehicles of all sort. These various energy sources contribute 23.1 million tons of sulfur dioxide and 20.5 million tons of nitrogen oxides to our atmosphere worldwide. When fossil fuels are ignited like oil and coal, they ...

Number of words: 1146 | Number of pages: 5

The Dangers Of Nuclear "Progress"

... agreements not to. Now, with enough nuclear weapons to blow up the world a good 10 times, experts can't help but wonder if this "progress" has gone to far. The dropping of the atomic bombs on Japan should have caused alarms to sound in people's heads…"Danger, danger!" Just one of these bombs has the ability to wipe out an entire country. The United States did make an attempt after World War II at eliminating nuclear proliferation by proposing the Baruch Plan in the United Nations. This proposal stated that all nuclear technol ...

Number of words: 610 | Number of pages: 3

Lighting Advancments

... the inhabitants, and to provide light; many primitive cultures would use burning torches to provide light for their excursions and pathways. Fire was the only true form of light they had other than the moon. Fire had many disadvantages, one was that fire depended on fuel and needed proper conditions to operate (no rain, minimal wind). Another disadvantage is that fire, if not handled properly, could result in a brush fire or even burn down their shelter. An advantage was it was efficient when conditions were correct. It provided an inexpensi ...

Number of words: 2248 | Number of pages: 9

Flourescence In-situ Hybridisation And Its Advantages

... FISH will be able to decrease the chances of a miscarriage by using samples of maternal blood instead of amniotic fluid. The problem with amniocentesis is it uses a hollow needle to take fluid from the mother's uterus. The needle could damage the developing fetus if not inserted properly. Another advantage of FISH is that the parents get a much quicker test result than amniocentesis. After the sample is taken, amniocentesis can take up to three weeks before a test can be administered. With FISH, a same day result is given, which is m ...

Number of words: 235 | Number of pages: 1

Biology Heat Loss Practical Write Up

... ratio of one. e.g. A flask of volume 200cm3 and a surface area of 160cm2 will have a surface area to volume ratio of: 160 ---- : 1 = 1.25 : 1 200 Objects that are not the same size but have the same surface area to volume ratios loose heat at the same rate. So a flask, with a volume of 200cm3 with a surface area of 160cm2 and a surface area to volume ratio of 1.25:1, will loose heat at the same rate as a similar flask of volume 625 and a surface area of 500 which also has a surface area to volume ratio of 1.25:1. However, general ...

Number of words: 1982 | Number of pages: 8

Computer Education

... 1950 in the U.S.. began in the middle of the 1950s with an organized body of knowledge. Also Japanese the teaching of computer science has been developed in the same period. During 1955 to 1959, some universities developed their own computers. They organized short courses. Computer technology comes from the U.S. to Japan. Usually a technology is developed in the U.S.. After that, it comes to Japan so Japanese is late at all and most manuals are written in English so it is easy to lean computer for people who speak English; however, most J ...

Number of words: 271 | Number of pages: 1

Mononucleosis

... which demands a lot of sleep and rest. Being sick for a length of time such as two weeks drains you of strength and energy and as well you lose a lot of your muscles. Balance can also become lost with such an illness, which requires time to develop. is known to be caused by the Epstein_Barr virus (EBV), which can be passed by coughing, sneezing or saliva transfer, where it gets it’s popular name, the “kissing disease”. Much like chicken pox, most people don’t receive a second time in their life, but it can happ ...

Number of words: 1043 | Number of pages: 4

Gene Therapy

... and ideas for transferring genes have been presented. William French Anderson, Michael Blaise, and Ken Culver performed the first successful on a human in 1990. They developed a protocol for treating Adenosine deaminase (ADA) deficiency, a severe combined immune deficiency, also known as the "Boy in the Bubble disease." ADA deficiency is a result of inheriting two copies of the defective ADA gene. Possession of a normal gene leads to the continuous, regular production of ADA in cells throughout the body. Without at least one properly fu ...

Number of words: 3603 | Number of pages: 14

Effects Of Technology

... entertainment like the Internet, television and even video games seem harmless to people, but they are really not. When the Internet was first introduced, people never thought it would be as big as it is today. The Internet is an easy to use technology that can do just about anything. But what people don’t understand is that the Internet is not all good. Much of the information posted on sites on the Internet is merely opinions, not factual information. When people look at this information, it looks and seems like trustful informati ...

Number of words: 661 | Number of pages: 3

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