... are satellites and have no apparent purposes. The findings consist of bacteria enhancements to human restrictions. The results are based on microsatellite DNA. The article is relevant to genetics by talking about mutated genes of bacteria because of microsatellites and diseases in humans caused by ... there will be 3-6 bands visible in the gel. The results reported in the article were of wide range. They also concluded that microsatellite DNA is important in the adaptations of organisms. In bacteria they found that microsatellites provide enhancements in a variety of functions. In diseas...

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... . Nevertheless, genetic profiling has been beneficial in paternity suits and rape cases, where the father or the assailant could be identified. However, despite its growing number of utilizations, DNA profiling is extremely hazardous when results are inaccurate or used to discriminate. The frequency of genetic testing in criminal investigations (more than 1,000 in the U.S. since 1987) has ... scientific knowledge and keep up with ongoing research in order to competently question and understand scientific evidence put forth. But these do not represent the only possible downfalls of DNA p...

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... contains ribose as its sugar and has a nitrogenous base of uracil rather than thymine. DNA contains deoxyribose as its sugar. Each nucleotide along a DNA strand has deoxyribose as its sugar and A, G, C, or T as its base, while each nucleotide along an RNA strand has ribose as its sugar and A, G, C, or U as its base. RNA molecules ... are always single stranded. Two major stages must occur in order to get from DNA to protein, transcription and translation. RNA helps in this process. Transcription is the synthesis of RNA. The information is transcribed from one molecule to the other. The ...

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... or an animal or a plant, to transform it at its most basic physical level. If I may use an almost unavoidable pun, the discovery of DNA, the working out of its structure and its alteration for therapy or for enhancement of potentiality or achievement may be the most pregnant scientif- ic/technical advance of mankind. It's ... timing and in the direction they will lead us. Nonetheless, it is not too soon for us to ponder these capabilities that may well be ours in the next century. DNA! Some call it the miracle molecule, or the magic molecule. Walter Gilbert, as quoted in this book call...

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... of a clone, an organism, or group of organisms, derived from another organism by an asexual reproductive process (Church of Scotland, 02). With other techniques scientists can isolate sections of DNA representing single genes, determine their nucleotide sequences, and reproduce them in the laboratory. This offers the possibility of creating entirely new genes with commercially or medically desirable properties. I think ... to grow neurons to cure those who suffer from Alzheimer's, Parkinson's or Rett Syndrome. * Here's how therapeutic cloning works: DNA is extracted from a sick person. T...

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... be split a few times therefore can only produce a few clones. The second technique, somatic nuclear replacement, has the potential to create endless numbers of the same person. It involves transferring DNA from a person's cell to a genetically blank egg. Scientists would need two cells. One cell is a body cell from the individual the wish to clone. This cell contains the ... will make the clone. It is a somatic cell, which is a cell from an organ or tissue. The second cell is an unfertilized egg. The nucleus is removed from the egg so it no longer contains any genetic material or DNA. T...

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... with exactly the same genetic material. Clones can be made from DNA. Scientists use DNA cloning techniques to reproduce specific genes. They first isolate a DNA fragment containing a particular gene. Then they combine the DNA fragment with the plasmid DNA to form recombinant DNA. This plasmid DNA can reproduce very easily, which also helps the new recombinant DNA replicate easily. So, scientist can generate large quantities of the recombinant ... DNA and the particular gene of interest. Animals can also be cloned. This is done by first destroying the nucleus of an egg cell from the speci...

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... it stops growing. Scientists need to determine whether ES cells can be taken from an embryo, which was created by fusing a human egg with a stripped cow egg. Cibelli refuses to talk about what they have done and their progress surrounding their project, but they have gone to a European patent ... the process. (Daniel Pendick, August 16, 1997) A study presented at a meeting of the International Embryo Transfer Society in Boston suggests that cow egg cells and cloning may also come to the rescue of many endangered animals. Cloning could possibly be the technology that preserves these end...

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... of either parent, as in the case of Dolly, the Scottish white-faced sheep, because the splitting is done after the union of sperm and egg. Dolly's birth, explained in detail in the article "Cloning: Will There Ever Be Another Ewe?", was the result of cloning using a technique ... cell in the body except a germ cell," and contains the same entire set of DNA. Dolly's story is revolutionary, in that, before her birth, it was deemed unfeasible to make a somatic cell differentiate as if it were a fertilized egg. Dolly, conversely, changed that notion. She was created by taking a somatic cell ...

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... various ways that may help or harm society as a whole. What Is Cloning There are three types of cloning that exist, reproductive cloning, DNA cloning, and therapeutic cloning. The American Heritage Dictionary has three different definitions for cloning. 1) A cell, group of cells, or organism that ... single original cell. 2) An organism descended asexually from a single ancestor, such as a plant produced by layering or a polyp produced by budding. 3) A DNA sequence, such as a gene, that is transferred from one organism to another and replicated by genetic engineering techniques. The Ame...

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Bioethics on human cloning. Introduction Cloning is an replication of another living thing which has the same DNA content with the original organism. The characteristics and features of the clone will be as the same as the original organism because the content of DNA is totally the same. The first successful cloning Doly the sheep Biological significance Human somatic cell nuclear ... transfer, otherwise known (somewhat inaccurately) as creating an embryo by "cloning," involves1: The starvation and subsequent implantation of DNA from specialized, non-sexual cells of one organism (e.g., cells ...

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... a unique sheep named Dolly. Dolly was a clone sheep born on February 12th 1997. Cloning is the process of creating a genetic duplicate of an individual. It involves taking DNA from an organism, living or dead, and replacing the nucleus of the egg with it. This would mean that an individual would grow with the exact genetic make-up of the person that the ... DNA was taken from. It needs no sperm to fertilise it as it already contains a full DNA strand, unlike the process involved with normal fertilisation where the sperm holds half ... the strand and the egg holds the other half. Up unt...

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... has the same genes as its parent. You take an egg and remove its nucleus, which contains the DNA/genes. Then you take the DNA from an adult cell and insert it into the egg, either by fusing the adult cell with the enucleated egg, or by a sophisticated nuclear transfer. You then stimulate the reconstructed egg electrically or chemically and try to make it start to ... divide and become an embryo. You then use the same process to implant the egg into a surrogate mother that ... humans is only to be used in a marriage between husband and wife. Cloning only involves one parent, therefore i...

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... transferred the nucleus of a salamander embryonic cell into a cell with no nucleus. Using a strand of hair, he tightened a loop around a newly fertilized egg, until he separated the nucleus and some of the cytoplasm. The side with the nucleus divided until it has sixteen cells. Spemann then loosened the loop ... didn't have a clue of how to do it. A very significant contribution came in 1944 when American Oswald Avery located the nucleic acid DNA as the carrier of genetic information, instead of proteins in the cell. Further insight into this concept came in 1950 when Alfred Hershey and ...

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... gene to cells lacking that particular function, thus correcting the genetic disorder or disease. There are two main categories of gene therapy: germ line therapy, or altering of sperm and egg cells, and somatic cell therapy, which is much like an organ transplant. Germ line therapy results in a permanent change for the entire organism, and its future offspring. Unfortunately, germ ... in the alteration of bacterial genes. "Transforming bacterial cells is easier than transforming the cells of complex organisms" (Stableford 34). Two reasons are evident for this ease of manipulation: DNA e...

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... person being cloned. "To clone any animal, Navara says the first step is to take the DNA out of an egg. DNA is the part of a cell that tells it what to do. Then, scientists inject the DNA from the organism they want to clone into that egg and try to get it to divide and grow into an embryo. In reproductive cloning, the embryo ... is then implanted into a surrogate, where it is supposed to continue to develop" (Discovery 1). What cloning does is that it copies the DNA/genes of the person and creates ... ...

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... domestication itself. The actual study of genetics started long ago, with Mendel and his studies. Now scientists know much more of genetics and DNA. However, with the increased knowledge comes increases power, and with power comes the potential to abuse it. With the potential to abuse power ... pairs, two in each individual for each separate characteristic. He concluded that since an individual organism is formed from the union of one egg and one sperm, that only one factor was present in eggs and sperm, but when they united, the number was returned to two ... collection of molecules. T...

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... year old girl , which was the first human trail approved in the United State. Gene Therapy is the process of replacing a defective gene inside a patient's DNA with a working gene that will produce the correct gene products. But in order to carry a working gene to replace a defective gene is that it must ... thing in common which is, that the tissues being treated are somatic (somatic cells include all the cells of the body, except sperm cells and egg cells). The difference between replacing defective genes in germline and somatic cell therapy is that , in the germline cells (which contri...

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... two arms of a chromosome, which are joined by the centromere. Humans have 46 chromosomes. 1 Illustration of the placement of genes in a chromosome. Genes are composed of a section of deoxyribonucleic acid (DNA). They act as a certain sequence of base pairs that codes for a certain trait/characteristic. As you can see above, every chromosome contains many genes. Nucleic acids are found in a cell ... for cell division.4 If a mutation occurs in a sex cell then it is passed down on the next generation. The Nucleic acid bases ( A,T and G,C) are usually altered. This happens when the DNA stra...

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... identical twins are all clones of each other. "In fact, you probably know some clones. Identical twins are clones of each other, both of them came from the same fertilized egg cell" (Berger). As long as genetic make up is the same they are clones and a splitting embryo that creates and two identical are new in genetic variation and unique from ... in the gene pool. As it is pointed out "mutations are passed along in a line of cells-from parent cell to daughter cells as the original DNA mistake is copied over and over in subsequent DNA replication" (Krogh 258). Everyone is cloned over an...

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... brings. Pros/Cons Cloning doesn't always have failure there are a few pros when you talk about cloning. (Reproductive cloning can help same sex couples have a kid without using a sperm or egg donor. You can clone endangered animals to save a certain type of species) (Quinonez). To clone an endangered species all you would need is a well preserved ... (Russell/Hertz/McMillian). Found on page 392 in the 'Biology: The Dynamic Science' it talks about another form of cloning which would be gene cloning. Gene cloning is when DNA cloning involves a gene. Having many copies of a gene gener...

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... to society. There are many reasonable methods of cloning. For instance, the use of cloning for medical purposes can be helpful in taking human DNA and creating new body parts. Because of the shortage of donors, this could become a valuable asset to our society. Cloning of human body ... in the field of medicine could have practical applications. For example, genes from humans that produce necessary proteins could be included in the animal DNA so that the animal would produce that protein in its milk or blood. That protein could then be extracted and used in treatment for ... an abnormali...

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... identical, but much younger, twin of the adult. The geneticist said that a clone of a human being would have a different environment than the person whose DNA it carried and so it would have to be a different person. Scientists believed that once adult cells had differentiated to become skin or eye cells ( Kolata ... . Also animals have other benefits such as producing medicines for people, such as cystic fibrosis patients. "Since the 1970s scientists have been manipulating DNA to create new forms of life, and today it's a growing for-profit business (Gillis616)." Although there are risk...

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... expected to be put into practice soon. Lee's description sheds some light on the process itself. He states a clone is a cell, multicellular organism, or DNA sequence derived from, and genetically identical to, another cell, organism, or DNA strand. Lee also says that cloning is the process of creating a genetic twin, and that there are two processes in which scientists may attempt to ... clone humans: nuclear transfer and reproductive cloning. Nuclear transfer is when an egg cell would be enucleated, and a donor nucleus from an adult member of the ... (Boyce 43). "While undoubtedly fas...

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... original animal. The first step in creating a transgenic animal is to identify and isolate the relevant gene or feature that you wish to change in the animal. The piece of DNA containing that gene is then inserted into a fertilized egg or embryo. According to the BUAV website (2000), "This can be achieved in a number of ways: 1) Microinjection of the ... DNA into the pronucleus 2) Retroviral transfer 3) The use of embryonic stem cells." In microinjection, the most common method, several hundred copies of the gene are injected directly into the pronucleus of the host egg. The modified em...

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