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Free research essays on topics related to: nucleus

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  • 21 St Chromosome Extra Chromosome
    583 words
    Down Syndrome or Trisomy 21 as it is also commonly known, is a genetic condition that for many years has been shrouded in fear, darkness & shame. There is absolutely nothing to fear, and there never should be any feelings of shame, it is not the persons fault. The only darkness associated with down syndrome is the ignorance many people have towards it. Basically down syndrome means that a person has one extra chromosome in each of the million of cells in their body. Instead of 46 chromosomes per...
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  • Degrees Celsius Atomic Mass
    318 words
    An American Chemist named Glenn T. Seaborg discovered plutonium in 1941 at Berkeley University in California. The discovery of Plutonium was not announced until 1946 because America was at war with Japan and Germany. Plutonium was named after the planet Pluto, after the planet Neptune in the solar system and Neptune gave its name to Neptunium. Plutonium is a silvery metal that turns yellow when exposed to air. It is warm to the touch due to the releasing radioactive energy from it. The atomic nu...
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  • Somatic Cell Nuclear Transfer Bone Marrow
    1,024 words
    ... ild by using nuclear transfer. The nucleus of one of her body cells could be placed into an enucleated egg cell from a woman without a defect in her mitochondria. The embryo can then be put back into the womb of the women who donated the nucleus then she can have a healthy child who is biologically related to her (Uses of Cloning 2). Another practical application of human cloning could be used as insurance for a person or his children's health. Humans might be able to clone their own organs ...
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  • Ventromedial Nucleus One Eating
    307 words
    The part of the body that motivates eating is the hypothalamus. The small gland is located in the midline at the base of the brain, just below the hypothalamus, and interacts closely with the pituitary gland and acts in coordination with the reticular formation. The two components of the hypothalamus dealing with hunger are the lateral hypothalamus and the ventromedial nucleus. The lateral part is what allows a person to feel hungry and sends out signals to the rest of the body that one is ready...
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  • Nuclear Transplantation Genetic Material
    1,360 words
    As science and technology go full steam ahead into this, the 21 st century, we must take a step back and look at all of the moral and ethical aspects of the science that we are developing. The topic raised is whether or not cloning is an acceptable development to be taken advantage of whenever technology reaches the point where cloning is an every day occurrence. In my view, the answer is yes. I will discuss some of the history of cloning and a great deal of what science will be able to do with ...
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  • Attempts At Cell Fusion Attempts At Cell Cloning
    445 words
    Cloning is the production of one or more individual plants or animals that are genetically identical to another plant or animal. Nature is the greatest cloning agent. In about one of every 75 human conceptions, the fertilized ovum splits for some unknown reason and produces identical twins. Each has a genetic makeup identical to the other. Bacteria, yeast and other cells multiply rapidly; these methods make possible the production of many copies of a particular gene. The copies can then be isola...
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  • Ability To Create Genetically Identical
    753 words
    Bioethics, which is Cloning Cloning Bioethics, which is the study of value judgments pertaining to human conduct in the area of biology and includes those related to the practice of medicine, has been an important aspect of all areas in the scientific field (Bernstein, Maurice, M. D. ). It is one of the factors that says whether or not specific scientific research can go on, and if it can, by which rules, regulations and guidelines it must abide by. One of the most recent and controversial issue...
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  • Type Of Cloning Genetically Identical
    1,476 words
    During the past few centuries, technology has reached a new level. With breakthroughs from the invention of electricity to the development of the Internet, these advances have made a huge impact on society. Every day brings the question of what will come next, and what technologies will further enhance the world. Science fiction novels and movies are essentially based on the wonder of future technologies. One of the biggest issues in the development of technology is cloning. The word clone is us...
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  • Fertilized Egg Single Clones
    241 words
    Of all the terms coined by scientists which have entered popular vocabulary, clone has become one of the more emotive. Strictly speaking a clone refers to one or more offspring derived from a single ancestor, whose genetic composition is identical to that of the ancestor. No sex is involved in the production of clones, and since sex is the normal means by which new genetic material is introduced during procreation, clones have no choice but to have the same genes as their single parent. In the s...
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  • Nuclear Fusion Level Waste
    257 words
    Low-level Waste facility Nuclear Fusion, a process in which two light nuclei combine to form a single heavier nucleus. An example of this is the sunray's they are the simplest form of nuclear fusion. The use for this is fusion is used as a fuel. But the risks are radiation poising which is very deadly. Nuclear fission, a reverse process of fusion. So it? s a process in which a heavy nucleus splits in to two smaller nuclei. The simplest form is particles going into are atmosphere from space. We u...
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  • Orbital Magnetic Dipole Orbital Magnetic Dipole Moment Electron
    519 words
    The Discovery Of The Electron The electron was discovered in 1895 by J. J. Thomson in the form of cathode rays, and was the first elementary particle to be identified. The electron is the lightest known particle which possesses an electric charge. Its rest mass is Me equal> 9. 1 x 10 - 28 g, about 1 / 1836 of the mass of the proton or neutron. The charge of the electron is -e = - 4. 8 x 10 ^- 10 esu tro static unit). The sign of the electrons charge is negative by convention, and that of the equ...
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  • Particle Accelerators Dark Matter Particles
    312 words
    NYTimes Article Category # 2. Ciara Jamie Connolly 05. 02. 00 Submitted 05. 04. 00? Searching For Dark Matter, With Both Eyes Closed. ? In a deficit-reduction measure in 1993, the Congress killed plans already underway for building the superconducting super collider. This proved that the US was ill prepared to join their European colleagues in studying subatomic particles in the nucleus. This $ 10 billion machine designed to speed protons around a 54 -mile track and collide them, so scientists c...
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  • Zona Pellucid Cloned Embryo
    853 words
    True Human Cloning Biological Aspects True human cloning involves taking a somatic cell from a person and removing its nucleus. Then the nucleus of a fertilized egg cell is removed and placed in the somatic cell. This is impossible in humans right now because the somatic cells are specialized and there are many genes that have been switched off in them that we do not know how to turn them back on. This was done with frogs however. The eggs were implanted with the nuclei from the intestinal linin...
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  • Spindle Fibers Daughter Cells
    451 words
    The Process of Mitosis Mitosis The Process of Mitosis is the term used to describe cell division for replication. The product at the end of mitosis is two daughter cells both genetically identical to the original (parent) cell. This process is used for growth and repair within an organism and also for asexual reproduction. There are five main stages to mitosis, called Interphase, Prophase, Metaphase, Anaphase and Telophase. Although the process has been divided up into these stages the process o...
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  • Gold Foil Experiment Model Of An Atom Thomson's
    268 words
    The evolution of the modern atom model took several years to evolved with contribution from different scientists. One of these scientists, the first to come up with a modern model of the atom is JJ Thomson. Thomson proposes that the structure of an atom is mainly a sphere. A sphere that is filled with positive electronic field and contains tiny particles that has a negative charge. He called the tiny particles corpuscles. Thomson's model of the atom is often refer as the plum pudding model becau...
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  • Save The World Von Laue
    635 words
    Moonshine Leo Szilard was born in Hungary with a passion to save the world. His father was a civil engineer, and his mother a loving caring women. He went to school at his gymnasium the University of Budapest's Month. He graduated from there in 1916 with the E? tv? s Prize. (A National Prize in Mathematics) Physics was always his passion, but there was no career in physics in Hungary. It is also said that despite his prize Szilard thought his skills in mathematics could not compete with his coll...
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  • Cell Division Prostate Cancer
    1,110 words
    Social, Ethical And Biological Issues Associated With Social, Ethical And Biological Issues Associated With Cancer Cancer is one of the most complex and devastating diseases that claim the life of many humans. Today there are one in three people worldwide who are affected by cancer, and almost 60 % of these people will almost certainly die. 7000 New Zealanders die every year from this disease. It is the second largest killer next to heart disease. Cancer does not just affect certain groups of pe...
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  • Amino Acids Dna Molecule
    245 words
    Protein Synthesis Protein synthesis is the process by which genetic information from the DNA stored in the nucleus is transferred to the ribosomes where it is used to arrange amino acids into proteins. The DNA molecule in the nucleus is unzipped by an enzyme called polymerase. From one of these single strands of a DNA molecule, a mRNA molecule is built. This is accomplished by an enzyme which travels along a portion of DNA between two exons and attaches the opposing base pairs to the backbone of...
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  • Human Cloning Somatic Cell
    779 words
    Should We Clone Organs? In recent decades, questions about genetic engineering, genetic modification, and cloning of animals and humans are on the minds of many. On February 27, 1997 when Dr. Ian Wilmut and his team sent chills down our spine with the announcement of the first successfully cloned sheep Dolly. At this time the reality of animal cloning stared us in the face while the human cloning was just around the corner. Have you ever imagined what life would be like if we could eliminate hum...
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  • Positive And Negative Positively Charged
    1,073 words
    Static Static Electricity Static Electricity Static electricity is electricity at rest, which is an accumulation of electric charge. This source of energy is the opposite of moving electric charge, known as electric current. It is part of the study of phenomena resulting from electric charge, called electrostatics. Electrostatics is actually one of the foundations of knowledge about electricity. Static electricity is clearly the oldest known form of electricity. The earliest understandings of st...
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