... . Learning Object Info: Lesson Highlight: Topic 1 - The Scientific Method   Type: HTML   Submitted By: Randall Warwick   Lesson Highlight: Topic 2 - Fundamentals of Chemistry Fundamentals of Chemistry When I think of the material things in the world, I like to think of that stuff as substance. However, my British friends don't like it when I use the word stuff. According to them, I should always say ... know most of what a cell does. Since all living things are made of cells, you'll know a lot about what all living things do. STRUCTURES and FUNCTIONS nucleus - contains genetic mater...

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... rely on biological vectors such as plasmids or viruses to carry foreign genes into cells. When using plasmids to move genes artificially, new genetic material is inserted into the cells next to the cells of the bacteria containing the plasmids. Often the bacteria will take up the gene and begin ... to produce the protein for the new gene codes. Viruses are infectious particles that contain genetic material to which a new gene can be added. When using viruses to move genes artificially, the virus carries the new gene into a recipient cell ... on biological vectors like plasmids or virus...

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... they never resulted in an offspring born without a tail for that same reason. Therefore, Lamarck's idea cannot be correct, mainly because these changes do not affect the genetic material. Change happens in genetic material only when games are involved. In 1858, Charles Darwin introduced a theory of evolution that is accepted by almost all scientists today. His theory states that all species evolved ... time required for half the radioactive atoms in a sample to decay. Each radioactive elements has a different half-life. Carbon-14 is particularly useful because it can be used to date mat...

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... may begin with a scrape of stained clothing found at the scene of the crime. Atuft of hair or droplets of body fluids such as blood can be used too. The material is soaked so that any body cells in the stain come away from the cloth and into the liquid. The cells are then broken open to let out the long ... have similarities in their DNA. The chances of two related people producing the same genetic fingerprint is as high as 1 in 200. If there is not enough good quality DNA material for a reliable test, the chance of two people producing the same the genetic fingerprint could rise to 1 i...

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... may begin with a scrape of stained clothing found at the scene of the crime. A tuft of hair or droplets of body fluids such as blood can be used too. The material is soaked so that any body cells in the stain come away from the cloth and into the liquid. The cells are then broken open to let out the long ... have similarities in their DNA. The chance of two related people producing the same genetic fingerprint is as high as 1 in 200. If there is not enough good quality DNA material for a reliable test, the chance of two people producing the same the genetic fingerprint could rise to 1 i...

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... not discover purpose, there is no purpose in the universe. Dawkins then makes the leap to an ontological reductionism or materialism, in which matter is the fundamental reality and only material causes are effective. The philosopher Daniel Dennett has defended a strong neo-Darwinian position, drawing from biology, probability theory, cognitive science, and computer simulations. Evolution, he asserts, is the product of ... equated with a detailed preexisting blueprint in the mind of God. The church fathers and subsequent theologians were influenced by the Platonic view of an eternal orde...

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... bacteriophages attach to the cell wall and inject its DNA into the bacterium, therefore transmitting the genetic information. This process would produce new phages, proving the DNA is the genetic material and "its protein coat is merely a combination package crate and a micro-syringe." Hershey and Chase added radioactive 35S to a liquid nutrient media and radioactive 32P to another, spun the cultures ... phages, and centrifuged the bacteria from the liquid. In the end, Hershey and Chase found only 32P in the pellet of the bacteria, providing conclusive evidence that the phage genetic ma...

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... 23 pairs of chromosomes, half of which are inherited from each parent. In Down syndrome (DS), however, the cells usually contain not 46, but 47 chromosomes. This surplus of genetic material, in the form of additional genes along the 21st chromosome, results in DS. The estimated occurrence of Down syndrome is between 1 in 1,000 to 1 in 1,100 live births. Each year ... cases of trisomy 21 are due to Robertsonian Translocation. "In this case, two breaks occur in separate chromosomes, usually the 14th and 21st chromosomes. There is rearrangement of the genetic material so that some of the 1...

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... use living organisms to create new products and processes. One of these techniques is genetic engineering(GE)". This method allows short sections of DNA to be isolated from the genetic material of any one organism and to be transferred into the cells of a different organism, thus altering its original characteristics. Organisms with at least one foreign gene inserted are known as ... genetically modified organisms (GMO's). Genetic modifications can be preformed on any type of life form including plants, animals and microorganisms. This is possible because the genetic material DNA is com...

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... the imaginable affects on our condition. The significance lies mainly in multiplying our potential for exponential growth. The limits to neurological capacity are no longer limited to our brains, merely material in our environment. Furthermore through the mapping of our exact neurological contents onto computers we could experience virtual reality in full. More impassioned declaimers could envision the transcendence to gods ... ...

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... opposite poles. Anaphase ends when the new chromosomes stop moving. Telophase is the fourth and final stage of mitosis. The chromosomes begin o uncoil into a tangle of chromatin. Chromatin is the material that makes up chromosomes and itself is made from protein and DNA. All of this takes place where the two new daughter cells are taking shape. Two nuclear envelopes begin ... ...

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... that makes trees rigid, by use of a genetically engineered enzyme. They believe that it would be of use to clean up the effluent form paper mills or for decomposing biological material for energy. This poses a threat to forests because it could destroy massive amounts of them by eating away their lignin. We could end up with no trees. Engineers could try ... ...

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... of the protein to differing extents. An example of this type of deletion can be seen in Cystic Fibrosis. Unequal crossing over during meiosis can lead to duplications of genetic material; this can have a large impact if the reading frame is disrupted. Another large cause of single gene defects is point mutations. A point mutation is when one base pair is exchanged ... ...

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... secondary structure of the 3' NCR is crucial for its proper activity. The entire genomic sequence of SNV (the Four Corners disease) has been determined by using RNA extracted from autopsy material as well as RNA extracted from cell culture-adapted virus. The L RNA is 6562 nucleotides in length; the M RNA is 3696 nucleotides, and the S RNA is 2059 nucleotides in length ... ...

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... of development. The one problem with the plan is that the rarer the species, the harder it is to get an egg to use as donors for the cloned genetic material. However, with close management of the endangered animals eggs can be extracted before the animals become extremely rare. The scientists are not completely sure if the eggs, once they have ... ...

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... by transverse binary fission, but some stalked and sessile ciliates "asexually bud off 'larval' offspring." Most ciliates undergo conjugation, in which two organisms of compatible "sexes" attach and exchange genetic material. Phylum Ciliophora may be divided into three subphyla: Postciliodesmatophora (two classes), Rhabodophora (two classes), and Cyrtophora (four classes). The only pathogenic ciliate is Balantidium, a rare human parasite. Phylum Apicomplexa Apicomplexans ... ...

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