hypothesis and guppy life history evolution.” Oikos 69: 54-63 Nicoletto‚ P.F. and A. Kodric-Brown. 1999. “The relationship between swimming performance‚ courtship behavior‚ and carotenoid pigmentation of guppies in four rivers of Trinidad.” Environ. Biol. Fish. 55: 235-270 O’steen‚ S. 2002. “Rapid evolution of escape ability in Trinidadian guppies (Poecilia reticulate).” Evolution 56: 776-784 Putatunda‚ R. 2010. “Guppies” www. Buzzle.com.
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Germ Line Control of female Sex Determination in Zebrafish In order to identify the sex of a developing embryo‚ many scientists have studied this process called sex determination that allows them to have better understandings on how sex is being determined in either vertebrates or invertebrates. Sex determination is normally determined genetically; however‚ other factors can contribute to its determination. There are numerous determinants that control sex determination‚ but the most important are
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The muscle physiology of skeletal muscle was observed by using electrical‚ physical‚ and neural stimulations of an isolated gastrocnemius muscle from Rana pipiens. The gastrocnemius receives signals from the action potentials of the sciatic nerve. The muscle contraction is caused by the binding of a neurotransmitter once the action potential reaches the neuromuscular junction. Stimulation of the muscle and the sciatic nerve allows for recording and measuring of these properties. We observed twitch
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Batzer MA‚ Rubin CM‚ Hellman-Blumberg U‚ Alegria-Hartman M‚ Leeflang EP‚ Stern JD‚ Bazan HA‚ Shaikh TH‚ Deininger PL‚ Schmid CW (1995) Dispersion and insertion polymorphism in two small subfamilies of recently amplified human Alu repeats. J Mol Biol 247:418-427 Matera AG‚ Hellmann U‚ Hintz MF‚ Schmid CW (i990b) Recently transposed Alu repeats result from multiple source genes. Nucleic Acids Res 18:6019-6023 Shen M-R‚ Batzer MA‚ Deininger PL (1991) Evolution of the master Alu gene(s). J Mol
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Volume 3‚ Issue 2‚ March 2009 © Diabetes Technology Society Journal of Diabetes Science and Technology REVIEW ARTICLE Maggot Therapy Takes Us Back to the Future of Wound Care: New and Improved Maggot Therapy for the 21st Century Ronald A. Sherman‚ M.D.‚ M.Sc.‚ D.T.M.H. Abstract In the 21st century‚ eighty years after William Baer presented his groundbreaking work treating bone and soft tissue infections with live maggots‚ thousands of therapists around the globe have rediscovered the
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Q1. What are the characteristics of a good measure of central tendency? [5Marks](b) What are the uses of averages? [5 Marks]Answer:a). The characteristics of a good measure of central tendency are: Present mass data in a concise form The mass data is condensed to make the data readable and to use it for further analysis.• Facilitate comparison It is difficult to compare two different sets of mass data. But we can compare those twoafter computing the averages of individual data sets.While comparing
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Current Chemical Biology‚ 2009‚ 3‚ 203-230 203 Functional Characterization of Chitin and Chitosan Inmaculada Aranaz‚ Marian Mengíbar‚ Ruth Harris‚ Inés Paños‚ Beatriz Miralles‚ Niuris Acosta‚ Gemma Galed and Ángeles Heras* Department of Physical Chemistry II‚ Faculty of Pharmacy‚ Institute of Biofunctional Studies‚ Complutense University‚ Paseo Juan XXIII‚ nº 1. Madrid 28040‚ Spain Abstract: Chitin and its deacetylated derivative chitosan are natural polymers composed of randomly distributed -(1-4)linked
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BIOL 323-02 TTH 12pm-2pm Drosophila melanogaster: Monohybrid Cross & Sex-Linked Inheritance October 6‚ 2012 Abstract This lab involved a monohybrid reciprocal cross and a sex-linked cross utilizing Drosophila melanogaster fruit flies. After sexing the flies‚ placing them in media‚ and letting them cross breed‚ we analyzed and recorded the phenotypes that were observed. The P1 flies were anesthetized then sexed by observing their phenotypes and equally distributed
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Yentl Smith BIOL 3810-504 Compound Action Potentials Date Performed: 15FEB2011 Date Due: 01MAR2011 Introduction Neurons are the cells that receive and transmit electrical signals (University of North Texas‚ 2010). The ability of the neuron to conduct these impulses is because of an electrochemical voltage across the plasma membrane of that neuron. An action potential is an all or nothing response to a stimulus along a single axon. A compound action potential is a graded response that
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References: Gustavo A. B. da Fonseca‚ Carlos Manuel Rodriguez‚ Guy Midgley‚ Jonah Busch‚ Lee Hannah‚ Russell A. Mittermeier (2007). No Forest Left Behind. PLoS Biol 5(8): e216 doi:10.1371/journal.pbio.0050216 Janetos‚ Anthony C. (1997). Do We Still Need Nature? The Importance of Biological Diversity. Consequence Vol. 3‚ No. 1. Retrieved Sunday‚ September 23‚ 2007 from http://www.gcrio.org/CONSEQUENCES/vol3no1/biodiversity
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