KARYOTYPING LAB INTRODUCTION The complete set of chromosomes in the body cell of a species is known as karyotype. Karyotype is a test to identify and evaluate the size‚ shape‚ and number of chromosomes in a sample of body cells. Any abnormalities such as extra‚ missing‚ or abnormal positions of chromosome pieces can cause problems with a person growth‚ development and body functions. Karyotype can be used to determine whether the chromosomes of an adult have an abnormality that can be passed on
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living organisms differ from each other There are many ways in which living organisms differ from each other. In this essay I will discuss the various ways of which this occurs. There are two different types of cells‚ there are prokaryotes and eukaryotes. Within eukaryotes there are different structures and similar structures. For example; in a plant cell they have a nucleus‚ mitochondria an ER‚ and a Golgi body. These are the same as animal cells; however they differ because plants cells have a
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A Chromosome Study Lab An examination of the chromosomes of a cell under high magnification can give much information about an organism. Figure 1 shows the chromosomes of a somatic cell as they might appear in an organism if enlarged many times their natural size. A somatic cell is any cell making up the organism except for reproductive cells. In this investigation‚ it is expected that you: a. learn what a chromosome Karyotype is. b. prepare a Karyotype of chromosomes according to the instructions
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Why are Living Organism so Diverse ? Regardless of world’s life diversity‚ we all‚ from the ant to the whale and us humans have DNA linkage‚ which gives us the evidence for one common ancestor. The question that comes up now is how from this very primitive common ancestor did we all end up so diverse. Biologist have dedicated they life to answer this question‚ Through this essay I shall show how through different aspects life has become so diverse. Timescale Life as not evolve suddenly from its
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Cell Division Why must cells divide? To start it off‚ cells can’t keep growing forever‚ so when they reach a certain size they will have to divide. Cells divide for four important reasons; reproduction‚ growth‚ repair‚ and replacement of damaged or worn out cells. Most cells divide at least once during their life cycle and some divide divide dozens of time times before they die. There are three types of cell division. They are binary fission‚ mitosis‚ and meiosis. When cell division is
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which eukaryotic organisms produce egg and sperm having half the genetic information (haploid) of the other cells in the organism’s body (diploid). You will notice some similarities to mitosis but some definite differences in meiosis that result in genetic diversity in the gametes as well as the offspring formed by the eventual fusion of the egg and sperm. Two of the most noted differences in meiosis are that 1) there are two complete divisions resulting in four daughter cells and‚ 2) meiosis has
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Homeland Security: Necessary prevention or invasion of freedoms? “Our nation owes a debt of gratitude to the 9/11 Commission members for their valuable service and important recommendations to improve homeland security.”-Jim Ramstad The United States has for a long time developed many agencies with many different purposes. Some agencies moderate currency while other handle law enforcement. These agencies have always run as single entities within the governmental framework. On September 11‚ 2001 our
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THE SEARCH FOR BETTER HEALTH 1.What is a healthy organism? Discuss the difficulties in defining the terms ‘health’ and ‘disease’ * Health – state of physical‚ mental and social wellbeing. It is not just absence of disease * disease – any condition which effects the functioning of any part of a living organism * difficulties in defining health and disease; * health 1) the definition of health varies with age eg stiffness in the joints is probably more common in a 90yo
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“Eukaryotic chromosomes are generally much bigger than those of prokaryotes. In eukaryotic cells‚ replication may begin at dozens or even hundreds of places on the DNA molecule‚ proceeding in both directions until each chromosome is completely copied. Although a number of proteins check DNA for chemical damage or base pair mismatches prior to replication‚ the system is not foolproof. Damaged regions of DNA are sometimes replicated‚ resulting in changes to DNA base sequences that may alter certain
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Michael A. Joyner English 112 25 0ctober 2014 The Atomic Bombings Were Necessary To the dismay of many people on August 6‚ 1945‚ the first atomic bomb was used in the history of mankind as a part of warfare. Many people died as a result of these bombings in Hiroshima and Nagasaki‚ and because of the bombings‚ Japan knew it had been defeated‚ so it soon afterwards surrendered to America. I believe that the bombings were necessary in order to make Japan surrender because Harry Truman‚ the President
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