In biology species can become isolated from other species through a number of processes. These isolation processes keep the two species from interbreeding and producing hybrid offspring. There are five separate isolation processes that prevent two species capable of producing offspring from being able to do so. Ecological Isolation Ecological‚ or habitat‚ isolation is when two species that could interbreed do not because the species live in different areas. For example‚ in the wild of India both
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Subsidiary Level and Advanced Level CHAPTERS CLASSIFIED:ENZYMES 9700/2 BIOLOGY Paper 2 Structured Question AS For year 2014 Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a soft pencil for any diagrams‚ graphs or rough
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Save and submit your assignment as: Matriculation No_ assignment 1.doc/PDF/docx. (e.g. U0xxx01B_Assignment01.docx) Assignment 1: Biological Sciences and Model Organisms (6%) Matriculation No.: A0101681R Name: Ramireddi Juhi Simanthika TA: (sorry couldn’t catch her name) 1. When a model organism is applied for researches‚ it has both advantages and disadvantages as they are described for M. musculus in the laboratory
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a gamete (egg or sperm.) This is Mendel’s Law of Segregation. In sexual reproduction egg and sperm from parents unite to form a new individual or zygote. Thus‚ each parent contributes one allele for each genetic locus. Mendel’s Law of Independent Assortment states that during meiosis‚ each pair of alleles is assorted randomly and inherited independently of the others. Note that this principle holds true only for genes that are located on different chromosomes. If the two alleles for a trait are
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Tomato Sweetness Jessica Pursell American InterContinental University 01/18/2015 Biology IP2 Introduction You and your neighbor have small kitchen gardens where you both grow tomatoes. His blotchy green and red tomatoes taste much sweeter than your perfectly uniform red ones. Could the sweetness of the tomatoes be effected by the green chloroplasts in the fruit? Hypothesis I personally think that the green chloroplasts do play a part in the sweetness of the tomatoes because it doesn’t
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Notes on Short Story THE GIFT OF THE MAGI By O. Henry Date: 26 September 2012 Title: The Gift of the Magi Author: William Sydney Porter also known as O. Henry Background of the O. Henry: O. Henry was born on September 11‚ 1862‚ in Greensboro‚ North Carolina. Both his mother and father died before O. Henry turned 20. As a teenager‚ he worked as a pharmacist’s assistant in his uncle’s drugstore to help support his family. At age 19‚ he moved to Texas to take advantage of its warmth and dry
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LAB 4: KIRCHHOFF’S RULES DIY Lab This section is adapted from reference 1. Objective In this experiment‚ you will experimentally verify Kirchhoff’s rules by measurement and by mathematical analysis. Apparatus (Lab Kit* or NIC Lab) 5 resistors one 6V battery or power supply (each under 1.5 kΩ each‚ not all equal) digital multimeter 12 connecting wires *If you do not have the Lab Kit‚ you can use equivalent items. Contact your instructor regarding equivalent items to ensure that the objective
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starch under these conditions. This reaction is the result of the formation of polyiodide chains from the reaction of starch and iodine. The amylose‚ or straight chain portion of starch‚ forms helices where iodine molecules assemble‚ forming a dark purple/black color. The amylopectin‚ or branched portion of starch‚ forms much shorter helices and iodine molecules are unable to assemble‚ leading the color to be of an orange/yellow hue. As starch is broken down or hydrolyzed into smaller carbohydrate units
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Cited: * -Shefferly‚ Nancy. University of Alabama BSC 117 Laboratory Manual Spring 2010. Tuscaloosa‚ AL: Shefferly‚ 2010. * -Cambell‚ Neil‚ Jane Reece‚ Lisa Urry‚ Michael Cane‚ Steven Wasserman‚ Peter Minorsky‚ and Robert Jackson. Biology. 8th ed. San Francisco‚ CA: Benjamin Cummings Inc.‚ 2008. * Curds‚ C.R.‚ Cockburn‚ A. 1968. Studies on the Growth and Feeding of Tetrahymena pyriformis in Axenic and Monoxenic Culture. Journal of General Microbiology 54:343-358.
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for development 3. vas deferens -- tube carrying sperm away from the testes 4. prostate gland -- the largest of several glands which add lubricating and other fluids to the sperm -- this combination of sperm and fluids is called semen 5. urethra -- tube through the penis carrying sperm to the outside of the body 6. penis -- adaptation for internal fertilization of the female Female System The structure and function of the human female reproductive system‚ is very similar to
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