... 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...

• Word Count: 3104
• Approx Pages: 12
• Has Bibliography
• Grade Level: High School

... 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...

• Word Count: 1322
• Approx Pages: 5
• Grade Level: High School

... useful in manipulating genes. Third, E. coli and some other kinds of bacteria make special chemicals, or enzymes, that are able to cut through strands of DNA at specific places. With these enzymes, bacteria can cut the DNA of viruses that invade people bodies. Viruses are tiny organisms that grow and reproduce only when they are inside living cells. The bacterial enzymes can ... cut the virus DNA into harmless fragments. Since they help limit the growth of viruses the enzymes are called restriction enzymes. Scientists have now discovered several types of restriction enzymes. They have u...

• Word Count: 634
• Approx Pages: 3
• Grade Level: High School

... the major organisms that cause food-borne illnesses. The most commonly found organism to cause food poisoning is salmonella. Salmonella can be spread through three common routes: (1) contaminated eggs and egg products as well as raw meats and chicken, (2) infected food handlers with feces-contaminated hands, and (3) marijuana contaminated with salmonella. The onset of symptoms develop from 5 to 72 hours after ... chemicals that could be cancer causing and linked to genetic disease (EPA). Some of the most harmful disorders that have come of these chemicals are tumor formation, gene mutat...

• Word Count: 3539
• Approx Pages: 14
• Grade Level: High School

... Maybe the disappearance of red color in serratia marcescens is caused by the UV light which causes mutations in its DNA. Prediction If UV light mutates the DNA producing prodigiosin, then red colonies of bacteria will no longer be produced. Independent Ultraviolet radiations (placed on four quadrant of petri dish, with exposure to each quadrant of 10's, 20's, ... it contains normal (red) strains of S. marcescens.The experimental group with lid on it also showed the growth of red colonies, similar to the control. The lid protects the bacterial DNA from damaging by UV light. Comparativel...

• Word Count: 486
• Approx Pages: 2
• Has Bibliography
• Grade Level: High School

... function as a whole, in order for our bodies to work properly(the same goes for single celled organism's). now we are ready to start talking about genetic engineering and how DNA is taking from one cell and put into another. Genetic engineering is used to take genes as well as segments of ... . Like for example a fish gene won't be excepted by a tomato unless it given a promoter with a "flag" that the tomato recognizes. Some times a virus will interrogate their genetic information into the DNA host of the cell (such as one of our own), multiply, and then infect all of the other cells sur...

• Word Count: 515
• Approx Pages: 2
• Grade Level: High School

... genes generally do not. Furthermore, plasmid-determined resistance can be amplified by gene duplication to produce higher levels of resistance or it can be carried on a segment of DNA that can transpose from one replicon to another, allowing greater flexibility in resistance diffusion1. In addition, resistance to multiple antibiotics can be packaged on one plasmid. Probably the most ... class of transposon is modeled by Tn916 determining tetracycline resistance and is found in S. faecalis4. This unit transfers by a conjugation-like process in the absence of noticeable plasmid DNA and is...

• Word Count: 985
• Approx Pages: 4
• Has Bibliography
• Grade Level: High School

... cell and then proceeds to integrate its own genetic material into the cell's genome. "Retroviruses contain an RNA genome and the RNA dependent DNA polymerase also termed reverse transcriptase. The reverse transcriptase synthesizes a double-stranded DNA copy of the genomic RNA template. The tRNA molecule acts as a primer for the first strand synthesis. The reverse transciptase, RNAse H ... activity, degrades the RNA strand of the RNA-DNA duplex and the polymerase activity synthesizes a complementary DNA strand. The copy DNA will then migrate into the cell nucleus where they ... become c...

• Word Count: 793
• Approx Pages: 3
• Has Bibliography
• Grade Level: High School

... can be a daunting task and it is helpful to see how a professional accomplishes it. When Whitney first gets her assignment, whether it be studying bacterial conjugation or mobile sequences or DNA called transposons, she typically has the same researching process each time. She starts off with a "literature search", which in her field means anything and everything relating to her topic in ... what her paper generally meant because it was information that was far too complicated. A transposon is a segment of DNA that can remove itself from the DNA genome of one bacteria and "jump" into th...

• Word Count: 1561
• Approx Pages: 6
• Grade Level: High School

... plan to map the human genome, he claimed he would do it first-and then he delivered results in 2001, years ahead of schedule. Armed with a deep understanding of how DNA works, Venter is now moving on to an even more extraordinary project. Starting with the stunning genetic diversity that exists in the wild, he is aiming to build custom-designed ... therapy can cure them. Gene therapy has created a whole new branch of pharmaceuticals in the pharmaceutical domain in biotechnology. The treatment also contributes to the diagnostic domain of biotechnology using DNA in the genes to alter muta...

• Word Count: 1283
• Approx Pages: 5
• Has Bibliography
• Grade Level: High School

... from protein enzymes. Some forms of RNA can copy themselves and can actually edit other RNAs by adding and deleting nucleotides. These experiments support another hypothesis that RNA, rather than DNA, functioned as life's first information storage system. According to this hypothesis, life based on RNA have started when RNA fragments began to copy and edit themselves and assemble proteins. As ... where they produced protein enzymes that took over the work of bringing about chemical reactions. Later, storing genetic information could have similarly been passed on to DNA. In this way, ove...

• Word Count: 2685
• Approx Pages: 11
• Has Bibliography
• Grade Level: High School

... to develop. Another man named Thomas Chech discovered that RNA can code hereditary instructions and catalyze chemical reactions (BSCS). By doing so, he figured out that this may show that DNA or RNA was present ALONG either protein like materials in the first precells (BSCS). In 1985, A.G. Cairns - Smith thought of nether idea. He thought that the first life ... were discovered around the same time as the North Pole Fossil (MP). The earliest fossils are interpreted to be prokaryotes. Prokaryotes are organisms that lack a membrane enclosing in their DNA (BSCS). As told before, the first ...

• Word Count: 1496
• Approx Pages: 6
• Grade Level: High School

... legs, and many more monstrosities. This information is far from the truth. Biotechnologists do make "new creatures" but none of which are disfigured and mutilated. The DNA of these organisms has been changed so that the product of that change allows the organism to become a more useful product or produce one. There are many ... well know example is Human Insulin. Those people who produce too little or none of their own, need to take insulin. The gene, a part of DNA that tells the body what to do, that codes for human insulin is injected in to a horse and the horse then starts to produce ...

• Word Count: 442
• Approx Pages: 2
• Grade Level: High School

... that viruses are not alive. As well as discuss the common disease Polio. I believe that Viruses are not alive! All viruses contain either RNA or DNA. Unlike animal and plant cells, viruses do not contain both. The DNA or RNA core of a virus is surrounded by a protein coat called a capsid. The capsid protects the nucleic acid. For instance, they do not meet ... are caused by cancers, such as the common cold, although there are no cures for these illnesses. Individual viruses, are often called virions, which contain genetic material. Like cell DNA, most viral DNA is double-stranded. Almos...

• Word Count: 624
• Approx Pages: 2
• Grade Level: High School

... from protein enzymes. These little guys were the start of the very first living organism. One hypothesis, made by scientists, states that RNA were life's first storage system instead of DNA. If that were true, then life based on RNA would have started when RNA fragments began to copy and edit themselves and assemble proteins. As time passed, these RNA's could ... where they produced protein enzymes that took over the work of bringing about chemical reactions. Later, storing genetic information could have similarly been passed on to DNA. In this way, over thousands of years, RNA, DNA, an...

• Word Count: 1784
• Approx Pages: 7
• Grade Level: High School

... that carryout various cell functions. And then there is the control center of the cell, the nucleus, surrounded by a protective outer covering call the nuclear membrane. The nucleus contains the DNA, or chromosomes, that carries all the instructions on how a cell will function, live, and reproduce. Every cell needs to energy to live and reproduce. Plant and animal cells obtain energy ... in food, water, and oxygen in very different ways, but both need these substances to make the energy needed to live, grow, and reproduce. Finally, every cell passes on their DNA to future generations th...

• Word Count: 567
• Approx Pages: 2
• Grade Level: High School

... themselves, without needing pesticides. An example of this is the baculovirus which, like other genetically engineered pesticides, gets a gene inserted into it (by the use of restriction enzymes that splice DNA and allow genes to be added to the sticky ends) that encodes for a toxin specific to the insects it is trying to eliminate which in this case are bollworms and ... budworms. It uses a toxin found in scorpions and doesn't harm humans or wildlife. The sticky ends base pair with the complementary sticky ends of the scorpion DNA fragment. The fact that viruses and their hosts have su...

• Word Count: 594
• Approx Pages: 2
• Grade Level: High School

... know what exactly a virus is. A virus is a small capsule made of lipid membranes enclosing certain proteins. This capsule contains usually one or two strands of either RNA (Ribonucleic Acid) or DNA (Deoxyribonucleic Acid). DNA and RNA are long molecules, which contain genetic codes or information. This is distinguishing feature of viruses in comparison to the host, which has both ... DNA and RNA. The virus exists for one purpose - to duplicate. For my project I will be talking about four viruses: Ebola, West Nile, Rabies, and Aids. 1. Ebola The intrusion of the ... ...

• Word Count: 695
• Approx Pages: 3
• Grade Level: High School

... microbial invaders, a programmed retrovirus, in the form of RNA. The viral RNA with the normal alternate gene is inserted into the chromosome of the virus in the form of transcribed DNA. It is then injected into the patient (1). An important advantage of gene therapy is that the treatment can be localized. This can protect against any side effects in other parts ... microbial invaders, a programmed retrovirus, in the form of RNA. The viral RNA with the normal alternate gene is inserted into the chromosome of the virus in the form of transcribed DNA. It is then injected into the patient ...

• Word Count: 929
• Approx Pages: 4
• Grade Level: High School

... time, literally producing our species of choice. This is proving to be helpful in many different ways. The process of genetic engineering has to do with the organisms DNA. We alter this DNA and the organism has no choice but to copy it. This is what makes it unique, after it grows it has the required gene to fit our needs. We ... ...

• Word Count: 604
• Approx Pages: 2
• Grade Level: High School

... cloned named Dolly. In 1952 the first cloning experiment was done with frogs by Robert Briggs and T.J. King, they added the nucleus of an advanced frog embryo cell to a frog egg, but it showed no development. Also in 1981 Karl Illmencee and Peter Hoppe reported that they had produced normal mice from mouse embryo cells that later on was discovered they ... wounded area, but it will probably leave a scar. Cells would be taken from the person to be cloned and genetic material from one cell that would be injected into the egg. Then after a few days the embryo would be implanted in a woman'...

• Word Count: 721
• Approx Pages: 3
• Grade Level: High School

... certain individual from a group or population – a group of the same or one species – of animals, insects, plants, and even prokaryotes (single-celled organism without nucleus, a membrane surrounding the DNA) like bacteria and archaea. For example, between a faster lion and a stronger lion, the faster lion tends to survive since the stronger lion cannot catch it. It also talks about the ... ...

• Word Count: 751
• Approx Pages: 3
• Grade Level: High School

VIRUSES & VIRAL INFECTION - Viruses are infectious agents made up of genetic material. (DNA or RNA) that is surrounded by a protein coat (CAPSID) - Viruses incorporate themselves into cells - Viruses are tiny and can only be seen with an election microscope - Viruses can only reproduce ... ...

• Word Count: 1031
• Approx Pages: 4
• Grade Level: High School

... of viruses into five periods. The first period is the eclipse period. No phage particles can be detected during this period as the phage are being un-coated and phage DNA is being injected for replication (Flint, 2000). Following the eclipse period is the synthetic period. During the synthetic period intracellular phage, particles are being produced. As in the eclipse period ... ...

• Word Count: 2348
• Approx Pages: 9
• Has Bibliography
• Grade Level: High School

... , antimicrobial-susceptibility testing, phage typing, and pulsed-field gel electrophoresis. After isolating the salmonella they identified the resistant integrons and extended spectrum BETA-lactamase genes by polymerase chain reaction and DNA sequencing. Critical Analysis The authors were clear with their hypothesis and evidence and their presentation of information was easy to follow and understand. Even with their use of technical terms ... ...

• Word Count: 806
• Approx Pages: 3
• Has Bibliography
• Grade Level: High School