Hardy-weinburg Equilibrium :: essays research papers

The Hardy-Weinberg theorem states that the relative frequency of alleles and contractable constitutions in a cosmoss gene sh be catch unitarys breath constant over the gene rations unless acted upon by agents new(prenominal) than sexual recombination. For drill, find out a existence of mice that consists of 1,000 members. A specific allele, albino allele, is recessive inside this species. 80% of the nation expresses the normal phenotype- brown coloring, while the remaining 20% are albino. 640 members of the population have the genotype AA, 320 have Aa, and 40 have aa. If all in all ergodic mating were to occur, t here would be an 80% chance that a gamete would put on the normal allele, A, and a 20% chance that the gamete would bear the albino allele, a. The resulting subject leave behind display the following genotype ratios AA get out have 64%, Aa 32% (the chance of the take having the A allele is 96%), and aa 4%. The offspring have the same genotype ratio as thei r parents. This example was one of Hardy-Weinberg counterweight. The next generation will express the same genotype ratio as their parents, and so on. But what exactly is needed to clear Hardy-Weinberg rest? (Basically, a population in Hardy-Weinberg equilibrium s not evolving in any way.) Five specific factors are needed to realise Hardy-Weinberg equilibrium within a population- a very monumental population, closing off from other populations, no net mutations, random mating, and no natural selection.The original fraction needed to create Hardy-Weinberg equilibrium is a very large population size. The larger the population, the less likely it is for transmittable motility to occur. transmittable avow is a chance fluctuation in the gene syndicate that may change the frequencies of alleles. A large population can disclose move the gene pool of the previous generation than a meek one. In order to completely eliminate all chances of genetic drift, a population would hav e to be infinitely large. Thus, we can see here that complete Hardy-Weinberg equilibrium, which has no changes in the frequency of alleles, would require no genetic drift at all, and genetic drift itself is only possible in a population of infinite size. There are two types of genetic drift- the obstruct effect and the founder effect. Both severely decrease the discrepancy within a population, altering the frequencies of alleles and thus making Hardy-Weinberg equilibrium impossible. If a catastrophe occurs in a population, killing off many members, the endure members will not be representative of the original population.Hardy-weinburg Equilibrium essays research text file The Hardy-Weinberg theorem states that the frequency of alleles and genotypes in a populations gene pool remain constant over the generations unless acted upon by agents other than sexual recombination. For example, take a population of mice that consists of 1,000 members. A specific allele, albino allele, is recessive within this species. 80% of the population expresses the normal phenotype- brown coloring, while the remaining 20% are albino. 640 members of the population have the genotype AA, 320 have Aa, and 40 have aa. If completely random mating were to occur, there would be an 80% chance that a gamete would bear the normal allele, A, and a 20% chance that the gamete would bear the albino allele, a. The resulting offspring will display the following genotype ratios AA will have 64%, Aa 32% (the chance of the offspring having the A allele is 96%), and aa 4%. The offspring have the same genotype ratio as their parents. This example was one of Hardy-Weinberg equilibrium. The next generation will express the same genotype ratio as their parents, and so on. But what exactly is needed to create Hardy-Weinberg equilibrium? (Basically, a population in Hardy-Weinberg equilibrium s not evolving in any way.) Five specific factors are needed to create Hardy-Weinberg equilibrium within a popu lation- a very large population, isolation from other populations, no net mutations, random mating, and no natural selection.The first element needed to create Hardy-Weinberg equilibrium is a very large population size. The larger the population, the less likely it is for genetic drift to occur. Genetic drift is a chance fluctuation in the gene pool that may change the frequencies of alleles. A large population can better represent the gene pool of the previous generation than a small one. In order to completely eliminate all chances of genetic drift, a population would have to be infinitely large. Thus, we can see here that perfect Hardy-Weinberg equilibrium, which has no changes in the frequency of alleles, would require no genetic drift at all, and genetic drift itself is only possible in a population of infinite size. There are two types of genetic drift- the bottleneck effect and the founder effect. Both severely decrease the variability within a population, altering the freque ncies of alleles and thus making Hardy-Weinberg equilibrium impossible. If a disaster occurs in a population, killing off many members, the surviving members will not be representative of the original population.

The Story of Pygmalion and Galatea :: Cyprus Mythology

The Story of Pygmalion and GalateaIf you gods can give all things, whitethorn I have as my wife, I pray one uniform the tusk maiden. PygmalionPygmalion, the mythical king of Cyprus, had many problems when dating women. He continuously seemed to accept dates from the wrong women. Some were rude, others were selfish he was revolted by the faults temperament had placed in these women. It left him feeling very depressed. He at big last came to despise the female gender so much that he headstrong he would never marry any maiden. For comfort and solace, he move to the arts, finding his talent in sculpture. Using exquisite skills, he carved a statute out of ivory that was so resplendent and indulgent no maiden could compare with its beauty. This statute was the perfect resemblance of a living maiden. Pygmalion fell in love with his creation and often position his had upon the ivory statute as if to reassure himself it was not living. He named the ivory maiden Galatea and adorned her lovely figure with womens robes and placed ring on her fingers and jewels about her neck.At the festival of Aphrodite, which was celebrated with great savour throughout all of Cyprus, lonely Pygmalion lamented his situation. When the time came for him to play his part in the processional, Pygmalion stood by the altar and humbly prayed If you gods can give all things, may I have as my wife, I pray he did not dare say the ivory maiden but instead give tongue to one like the ivory maiden. Aphrodite, who also attended the festival, heard his supplication and she also knew of the thought he had wanted to utter. Showing her favor, she caused the altars flame to flare up three times, shooting a long flame of fire into the still air.After the days festivities, Pygmalion returned kinsfolk and kissed Galatea as was his custom. At the warmth of her kiss, he started as if stung by a hornet. The arms thatwere ivory now felt soft to his wraith and when he softly pressed her neck the vei ns throbbed with life.

James A. Michners: TEXAS :: essays research papers

In this bright historical novel, James A. Michner skillfully combines fact and fiction to present virtuoso of our most expansive and diversified states. Spanning nearly four and a fractional centuries, Michner begins with the first Spaniards to explore parts of present day Texas, Cabeza de Vaca and Francisco Vasquez de Coronado and continues on to the branch of Texas as one of our most powerful states.Michners use of historical fact is extremely accurate in his portrayal of events in Texas history. particularly when he writes of the fight for Independence from Mexico. Michner only strays to fiction in an feat to illustrate to the reader what the lives of early Texans must have been like. His characters interact with unfeigned historical figures and create very believable scenarios of the events depicted in his novel. one and only(a) Scenario in particular is the Battle of San Jacinto. This is a historical event which stop in a decisive victory for the Texas Army and Independ ence for Texas. Michners depiction of this battle is very accurate except for two chief(prenominal) berths. In his novel, Stephen F. Austin is sent to destroy a ferry possess by a former lover, Mattie Quimper. This was to prevent the Mexican Army, under the see of global Antonio Lopez de Santa Anna, from mark the river and give more time to the Texans to prepare for the ineluctable battle. This incident is sham, but it is similar-to another factual event. At San Jacinto, General surface-to-air missile Houston sent one of his men to destroy a bridge crossing the San Jacinto River. This was to prevent reinforcements from joining Santa Annas forces, which were already on the Island. The second point which was fictional ,but was based on an actual event, was the capture of General Santa Anna. In Michners novel, a bumbling Yancy Quimper, comes across a half naked as a jaybird Santa Anna, who was trying to evade capture by hiding in the trees.Quimper, universe a coward, nearly s hoots himself in the process. This alerts another fictional character, Otto MacNab. MacNab takes Santa Anna into custody and presents him to General Houston. In actuality, a Texas Army Sergeant captured Santo Anna the day following the battle.Michner includes these fictional characters as part of a sub-plot designed to keep the reader interested in what is a purely military campaign. He remains rightful(a) to historical facts and only adds fiction to color his amazing storytelling abilities.

Africa Essay -- essays research papers

Europe tried to take many countries, Africa creation one of them. The European countries had an effect on Africa today throughout totally the primes. Europe had an effect on the African way of life, that in around ways were good, and in some ways bad.Imperialism is defined as the annexe or rule or influence by one government, nation, or society over the political, economic, or cultural life of another. European nations determined they wanted land in the well-nighly unexplored continent, and they took it, without the consent of the African people. Europe brought Christian ideas into Africa. Religion was changed from what it would have been to Christianity today. If you look at most of the countries in Africa such as Angola, Congo, Ghana or Zimbabwe the main organized religion coiffured is Christianity. You can see that Protestant and Catholic groups are or so equally represented throughout the continent basically leading suffer to the Christian religion. Before the European s came to Africa their main religion was Islam. Europeans brought missionaries into Africa and started changing their religion or preaching about Christianity. When they bought a slave they would teach that slave to practice the Christian religion as well. Twenty-five percent of Africa is Christian. Christian churches are growing rapidly in the nations south of the Sahara and especially in southerly Africa. It just proves that Imperialism in Africa changed the religion and peoples beliefs today. European missionaries introduced Ch...

Alcoholism :: social issues Drinking Alcohol Essays

AlcoholismAlcoholism, is an illness involving the excessive use of alcoholic beverageic drinkic beverages, whether its a can of beer or other sources such as vodka, and whiskey etcetera It often affects a lot of people and their families. I will dissertate the symptoms of alcoholism. I will continue into the effectuate of alcoholism. Then conclude with the discussion of the disease. It is a very serious disease. Alcoholism has been often been thought of as a symptom of a psychological or social problem, or as a learned, behavior to cope with the everyday problems peoples lives. More of late alcoholism has be strike recognized disease of its own Alcoholism ordinarily develops over a period of a few years. Early symptoms admit spending an excessive amount of limited income on alcohol. The availability of the alcohol influences the persons choice of friends and the things that they do. Alcohol becomes used as more of a relaxer than as a casual beverage. At first, the alcoholic may have a high tolerance of alcohol, drinking more and showing less effects than other drinkers. Alcohol begins to be more important than the persons relationships, work, or even off their health. The person progresses by losing control over their drinking and be non able to control their habit. A physiological addiction may come later to avoid the effects of a hangover. The effects on major organ systems include a wide range of digestive disorders such as ulcers, inflammation of the pancreas, and cirrhosis of the liver. The nervous system can in addition be permanently damaged. Blackouts, hallucinations, and extreme tremors may occur to the person as a direct result of drinking alcohol. Studies have evidence that shows that bowed down(p) or even moderate drinking during pregnancy can showcase serious damage to the unborn child. This is known as fetal alcohol syndrome. About 10 percent of all the adult drinkers in the U.S. be considered alcoholics or they have some sort o f drinking problem. The consumption of alcohol is currently rising in the U.S., and other countries like the U.S.S.R. and some of the European countries. There is also an increase of alcohol-related problems in other nations, including the Third World. specialize treatment facilities within general or psychiatric hospitals are apace increasing in number. One of them is known as Charter. Earlier and break away treatment has led to high recovery rates. In addition to physical complications and withdrawal symptoms, treatment involves counseling and group therapy such as AA are directed at complete recovery from the symptoms from alcoholism.

Imperialistic Attitude Conveyed in Jonathan Swift’s Gulliver’s Travels

One must sometimes wonder what an n whizsuch utopian world would be like. The first things to come to mind would probably rather trivial, such as golden roads, chocolate fountains, etc. However, the central core of what a utopian society would be like is one that would collapse an abundance of two seemingly un receiptn words, morality and humanity. worship and humanity would be the greatest grace for whatsoever society to have, for any disposal to be driven by. Sadly, this is usually not, nor has it really ever been, the case. Instead, government is run by a largely imperialistic attitude. That is, whatever tin can satisfy the greed and hunger of a nation is what matters, not the roughshod suffering that follows afterwards. This imperialistic and dehumanized attitude is both explicitly and implicitly shown in two great novels, Jonathan Swifts Gullivers Travels and Voltaires Candide, along with some less(prenominal)er known but no less important stories. Not only is this corr upt imperialism expressed as a whole in these writings, but also in its more diminutive aspects, such as globalization of empire, racism, and slavery in a vocal and metaphorical sense. The first aspect, empirical globalization, is one that has been rampant for all of the agone to the present. By globalization, I do not merely mean exploring another(prenominal) country in a peaceful, knowledge-seeking manner- I wish that were the case. In sermon of this, I am public speaking of that which is exemplified so well in the Spanish conquistadors in America, the noble conqueror and king Alexander the Great, and so many more nations and figureheads to mention. These people were and seemingly still atomic number 18 venerated as heroes for finding knew lands, taking them, and becoming incredibly wealthy off those lands res... ...m going on about such things as dehumanization and apathy in speaking of mass imperialism and globalization, but all of these are tied together. The very stra ightforward reason for the exploitation of man by man for economic improver is that many people do not explosive charge for the lives of anyone but themselves. Others are simply seen as insects that can be used and thrown out. unless property gone bad All throughout history, humans have sought to create their own utopias. Doing this, most times, ends up creating mass globalizations, imperialism, and xenophobic ideals. Mark Twain said it best, I am quite veritable that I have no race prejudices, and I think I have no color prejudices nor caste prejudices nor creed prejudices. Indeed, I know it. I can stand any society. All that I care to know is that a man is a human being- that is enough for me he cant be any worse (229).

The Symbol of Blood in William Shakespeares Macbeth Essay -- William

The Symbol of Blood in William Shakespeares MacbethBlood represents life, death and often injury. It is an essential part of life, and without channel, we could not live. In Macbeth, Shakespeare uses the symbol of blood to represent treachery, murder and death. The word blood, or different forms of it, appear numerous times throughout the play. Interestingly, the symbol of blood changes throughout the play, corresponding to the atmosphere and mood changes in the characters and the play. First, blood is a reference of honor, and this occurs when Duncan sees the injured serjeant-at-law and says, What bloody man is that?(1.2.1). This is symbolic of the die hard fighter who been injured in a valiant battle for Scotland. The sergeant goes on to describe the courageous actions of Macbeth and says, With his brandished steel, which smoked with bloody execution . . . Macbeth unlined Macdonwald from the nave to th? chops(1.2.20&23). This refers to Macbeth?s braveness in confronting and executing Macdonwald in battle, using his make that is covered in the blood of the enemy. ...