BIOLOGY 22 MODULE 1 – Chemical Basis of Life v2.0 * Levels of Organization – biological functions are ultimately based on the properties of atoms and molecules * Subatomic particles – neutrons‚ electrons‚ protons * Atoms * Compounds * Complexes of compounds * Organelles – bodies within cells that perform specific functions * Cell * Specific combination of organelles * Can metabolize and reproduce * Least elaborate living structure * Significance
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THE MOLECULAR BASIS OF INHERITANCE I. History A. Discovery of “transformation” – a change in genotype and phenotype due to the uptake of external DNA by a cell 1. Griffith 1920s did experiments with Streptococcus pneumoniae (p294 fig16.2) a. took two strains of S. pneumoniae‚ one virulent‚ one not b. heat killed virulent strain‚ then mixed them with the living nonvirulent strain c. living nonvirulent strain became virulent d. nonvirulent strain took on virulent strain’s DNA became virulent
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The economic challenges faced by African Americans in the post-Civil War era were rooted in a long history of exploitation‚ beginning with slavery. After the Emancipation Proclamation and the end of the Civil War in 1865‚ millions of newly freed slaves faced the daunting task of building economic independence in a society that remained hostile to their progress. Reconstruction efforts such as the Freedmen’s Bureau aimed to address these economic issues‚ but progress was limited. The promise of “40
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Development of Southern Cultures in the Chesapeake 1680- 1800” the main theme is the outcome of a long-term economic‚ demographic‚ and political transformation that replaced the farmsteads of the first Chesapeake settler with the kind of slave society described by modern historians. After a brief study of the social structure of the region in the seventeenth century‚ this work analyzed the economic and demographic change between 1680 and 1750. The change that took place described how men and women‚ and
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Emily Pozzuoli MCB2004 04/15/2013 Emerging Infectious Diseases: Avian Influenza A Emerging infectious diseases are diseases that are new or changing‚ and are increasing‚ or have the potential to increase in incidence in the near future. (Pearson‚ Microbiology) Some important contributing factors to the development of EIDs are evolutionary changes in existing organisms‚ the movement of previously identified diseases to new geographic locations and populations by modern transportation‚ and increased
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Emerging Markets is used to describe a country in the process of rapid growth and industrialisation Opportunities- Strong Economic Growth /Rising consumer incomes and growing ‘middle-classes’/Opportunities for joint ventures with local businesses Threats- Culture/varying customer needs/Difficult to protect ideas from competition due to inadequate laws/Infrastructure could be poor‚ making distribution and marketing difficult The US soft drinks giant announced a 6% rise in operating revenue to $11
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the first action to take place to create security among the European nations however was also one of the main causes of World War One. The secret alliance systems transformed into the League of Nation after the First World War. The League of Nations main purpose was to make‚ according to Woodrow Wilson‚ the world safe for democracy’ and also to prevent the turmoil which was caused in WWI from reoccurring. The League of Nations had various triumphs however for the most part failed causing many members
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Slavery during the American Revolution to the Civil war and beyond. I. Slavery during the 1730’s through 1820’s. A. Antislavery movements 1730’s-1770’s B. Expansion of Slavery 1770’- 1820’s II. Slavery during the Confederacy A. Slavery as a Southern right B. Groups pushing for social change. III. Slavery and ethnic races A. Connections between Blacks and Native Americans B. Connections between the whites and Native Americans C. Civil War post racial
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truly abolished slavery with the 13th amendment or has it just found a new way to exploit minorities‚ specifically African Americans? In Rooted in Slavery: Prison Labor Exploitation‚ Jaron Browne points out that in deliberate decisions made by the United States and the G7‚ efforts were made to move entire production facilities to the south creating a shortage of jobs in the United States in the 1970’s. With this move came staggering numbers of unemployment especially among African Americans. Browne
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What is Life? This perennial question the answer to which has somehow eluded the most brilliant minds. For while scientists have identified many years ago the right mix of the atoms and molecules that constitute cellular material‚ they have not succeeded in ‘switching it on’ to make it alive‚ or ‘breathing life’ into it (Rabago et.al‚2006) In this module you will: a. Explain the concepts of the cell theory b. Identify the parts of a cell c. Describe the function of each cell part d. Differentiate
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