Salters Nuffield Advanced Biology AS Revision summary Unit 1 Topic 1: Lifestyle‚ health and risk Topic 2: Genes and health Unit 2 Topic 3: Topic 4: SNAB Biology AS Revision Summary Understanding the specification The following summary tries to explain what is meant by the specification statements for the SNAB AS course. SNAB includes a lot of material because it helps you to understand ideas or because it is interesting‚ but it can be a little confusing when it comes to knowing what to
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Name___________________________________ Score________________ Section___________________________________ Date_________________ EXERCISE NO. 1a MITOSIS OBJECTIVES The students should be able to: 1. identify the different steps involved in mitosis and meiosis; 2. describe the behavior of the chromosomes during each stage of cell division; 3. identify specific events in mitosis and meiosis that allow the inheritance of traits and generation of variation. MATERIALS
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Nicolas‚ Vida Marie C. February 24‚ 2014 IA12116 Prof. Brenda Lansang GENETIC DISORDERS 22q11.2 Deletion Syndrome 22q11.2 deletion syndrome is a disorder caused by the deletion of a small piece of chromosome 22. The deletion occurs near the middle of the chromosome at a location designated q11.2. 22q11.2 deletion syndrome has many possible signs and symptoms that can affect almost any part of the body. The features of this syndrome vary widely‚ even among affected members
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technological advancements to society and these have also contributed to the current genetic revolution‚ which promises to do for life what computers did for information. This increasing power and accessibility may one day give parents the option of genetically engineering the "designer baby". This may be used to spare the unborn from disease or‚ possibly‚ make them tall‚ intelligent and blessed with any desirable traits. Genetic engineering has given humans the power to alter the very basis of life on earth
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Bacterial Biology █ BRIAN D. HOYLE An understanding of the fundamentals of bacterial biology is critical to bacteriologists and other forensic investigators attempting to identify potential biogenic pathogens that may be exploited as agents in biological warfare or by bioterrorists. Fundamentals of Bacterial Biology Bacteria are one-celled prokaryotic organisms that lack a true nucleus (i.e.‚ a nucleus defined by a membrane). Bacteria maintain their genetic material‚ deoxyribonucleic
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amounts of melanin (the protective pigment that gives skin and eyes their color) darker skin produces. But people of color can still develop skin cancer from UV damage. Additionally‚ certain skin cancers are caused by factors other than UV such as genetics or other environmental influences and may occur on parts of the body rarely exposed to the sun. b) Based on what you have learned in this lesson‚ which cells of skin are likely to be the source of cancerous cells? What do you think would happen
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Animal Diversity The number of animal varieties familiar to us is vast as the animal world is diverse. Each distinct variety or type of animals is recognized by scientist as a species. Animals of most species are free-living forms but of others are parasitic in bodies of other animals or even plants. According to their habitats animals are divided into the following types Aquatic animals :- They live in water . Animals living in sea water are called marine & those live in river‚ponds‚streams
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Experiment 8.1 Yes there was a change because with the starting snail population there was a great variation from 1-7. After the crab began eating only the snails with the thickest shells survived. The snails with the thinnest shells were eaten by the crab. Only snails with shell thickness 4-7 were left after the crab had their meal. The original snails with thickness 1-3 were eliminated from the population by the crab. The crab will usually try to expend as little enrgy as it can to maximaize its
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Mendelian Genetics Introduction In 1865 an Austrian monk‚ Gregor Mendel‚ presented the results of painstaking experiments on the inheritance of the garden pea. Those results were heard‚ but not understood‚ by Mendel’s audience. In 1866‚ Mendel published his results in an obscure German journal. The result of this was that Mendel’s work was ignored and forgotten. Mendel died in 1884 without knowing the pivotal role his work would play in founding the modern discipline of genetics. By 1899‚ some
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Recounting the 2000 Presidential Election The movie Recount tells the story of the ballot controversy in Florida during the 2000 presidential election of George W. Bush vs. Al Gore. Recount was written by Danny Strong‚ directed by Jay Roach‚ and produced by Kevin Spacey. It is told from the from the perspective of Kevin Spacey as Ron Klain‚ one of Vice President Gore ’s lawyers. The film begins on November 7‚ 2000‚ the night of the presidential election. Florida is called for Governor Bush by
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