Thomas Hunt Morgan Essay

The basis of genetics were established by Gregor Mendel, an Augustinian monk in the mid to late 1800’s. Through the observations from cross-pollinating pea plants, Mendel was able to discover the basic laws of inheritance. Years later genetics would be studied on a multitude of organisms, some more than others. Drosophila melanogaster or the common fruit fly has been studied in depth for its great advantages, such as size, reproduction rate, ease of care and inexpensive room and board.

     When people talk about J.P. Morgan, they often refer to one man. The J.P. Morgan dynasty was in fact a combined effort of three generations of Morgans. In 1838, American businessman George Peabody opened the London merchant banking firm that would establish the roots of the House of Morgan. In 1854, Junius S. Morgan became the partner of George Peabody and eventually took over the firm in 1864, renaming it J.S. Morgan & Co. At the age of twenty four, J. Pierpont Morgan inherited his father’s business, renamed the business to J.P. Morgan & Co., and made a point to consolidate the firm’s American and European interests. Under Pierpont’s authority, J.P. Morgan

The U.S. and Cuba have had a decades long contentious relationship ever since the Cuban Revolution in 1959. Yet, strangely enough, one of the leading figures in the Cuban Revolution was a young American who grew up in Toledo, Ohio. William Alexander Morgan drifted from one odd job to another in the U.S. and even served prison time for desertion from the U.S. Army. Somehow Morgan ended up smuggling guns to the Cuban rebels, led by a young Fidel Castro, in the late 1950s. Eventually, Morgan joined the rebels in the armed struggle for democracy in Cuba. His fearless leadership and heroic efforts allowed him to rapidly rise to the rank of Comandante and was affectionately referred to by the rebels as the “Americano.” Why would an American with

John Pierpont Morgan is considered one of the founding fathers of the modern United States economy. He was an industrial genius that is accredited with the founding of many companies including General Electric and AT&T. However, Pierpont is looked upon as a saint and demon the same. He received a honorary degree from Harvard university that read: "Public citizen, patron of literature and art, prince among merchants, who by his skill, wisdom and courage, has twice in times of stress repelled a national danger of financial panic." But Robert LaFollette, the Wisconsin progressive, saw him as "a beefy, red-faced thick-necked financial bully, drunk with wealth and power." Despite conflicting opinion on his persona, his influence and

This discovery was made when Morgan was working at Columbia and one day, while observing a male fruit fly, he noticed that instead having bright red eyes as any normal Drosophila melanogaster would, this particular insect had white eyes. Morgan questioned the cause of the color of that fly to be different and wondered how this trait was acquired. In order to answer his questions, Morgan proceeded to do simple breeding analyses with the white-eye fruit fly. This experiment began with a test cross between the white-eyed fly with normal red-eyed females. The results in the first generation was all red eyes. This was shown through the use of Punnett squares. However Morgan didn’t stop there, he took the male and females from the first generation and test crossed them again. This time, the second generation resulted with some flies with the white-eyed trait along with some red-eyed trait. Morgan noticed that the only white-eyed trait however occurred only in the male fruit flies. This led to his hypothesis of sex-limited, also known as sex-linked. However, upon further experimentations, the next generations of crossing the original male with some first generation red-eyed females resulted with both red-eyed and white-eyed males and females, therefore the trait was concluded to be sex-related and the trait of the coloured-eyed gene was found to be on the X-chromosome. Thus the discovery of how genes are transmitted through chromosomes. In 1933, Thomas Morgan

The main purpose of this lab was to utilize the infamous Hardy-Weinberg equilibrium equation to predict the evolutionary modifications a certain species (Drosophila melanogaster) displayed throughout different generations. For this experiment to be carried out, Drosophila melanogaster, also known as fruit flies, were used to visually represent evolutionary conceptions such as Hardy-Weinberg equilibrium equation. At the beginning of the experiment, the parent generation was observed first. Throughout the course of seven weeks, the vial was analyzed for certain changes between the two populations of Drosophila melanogaster; wild type and ebony. Although the genotypes could not be figured out, the flies were evaluated and observed based on

Painting landscapes was very important during the 19th century. Thomas Cole was one of the most important figures in landscape painting in the United States. He went to many places searching for nature, which he painted to show the unmatchable beauty nature creates. His works of art helped people see and take pride in their great land, which was called America. Cole’s works were often made people feel like they needed to go out in nature and discover the inspiring world of mother earth.

Introduction For centuries, researchers have used Drosophila melanogaster, the common fruit fly, to study genetics. The benefits of using the fruit fly includes: its relatively short generation time, its large amount of available offspring for data, it is easy to store and handle in the laboratory and it is easily and cheaply obtained. Cross-breeding of four types of fruit flies were used in this experiment including: wild type males with normal wings vs. vestigial wing females, wild type males with red eyes vs. white eyed females, wild type male with red eyes vs. sepia eyed females, and wild type males vs. wild type females. In basic mendelian genetics, the terms dominant, recessive and sex-linked are used to describe the different types

Marshall University is very special to its community because of its founded history, cataclysmic plane crash, and its ability to come together as a town when tragedy strikes. Marshall University was originally founded in 1837 for the children of local farmers. The local citizens of what is now Huntington, West Virginia petitioned the General Assembly of Virginia to establish an advanced educational program named after Chief Justice John Marshall.

William Marshall is considered by many to be the epitome of knighthood and chivalry as well as being an outstanding ambassador for England during the turbulent twelfth and thirteenth centuries. From a virtually obscure beginning, William evolves into one of the most dominant stately figures of the time in England. During his brilliant military and political career, William served as knight for the courts of Kings Henry II, Richard (the Lion-hearted), and John.

Drosophila melanogastor were one of the first organisms chosen to be analyzed and study, since they are the work force of the genetics research. Back in the early 1900s, researchers such as T.H. Morgan, H.J. Muller, E. Weischaus, and C. Nisslein-Volhard were able to use the organisms to determine how genes are inherited, how radiation causes DNA damage, and there are genes that controls human development. In 2000, scientists found over a hundred genes that can be used to study human diseases because they found a way to sequence the drosophila genome. This organism has been used for scientific research for decades and is continued to be used because they help scientists and researchers understand how human processes and their disorders. With the experiment, crossing the flies is to demonstrate the inheritance pattern of a single and double trait.

In this experiment we bred drosophila with unknown genotypes, which are the actual genes of an organism, to see what the phenotype of their offspring would be. Introduction: T. H. Morgan was a geneticist who worked in the early part of the twentieth century. He was the first to use fruit fly, Drosophila melanogaster, as a model organism in genetic studies. He developed a name for himself that way and the science world wouldn’t be the same with out his discovery.

When one thinks of Drosophila melanogaster, one should think of Thomas Hunt Morgan, a Noble Prize winner for discoveries regarding the chromosome and a recipient of the Darwin Medal. Morgan was born in Lexington, Kentucky on September 25th, 1866 and was the eldest son of his family. He attended the University of Kentucky, attaining a B.S. degree in 1886, and continued onto John Hopkins University where he studied morphology, a branch of biology dealing with the structure of plants animals (University of Sheffield 2012), and physiology, or the study of how living organisms function (Merriam-Webster). Growing up, he always collected fossils, and just following his graduation from the University of Kentucky, he engaged with laboratory research involving marine life. Following his graduation from John

Thomas Hunt Morgan, who published a paper on fruit flies that started the work of fruit flies in genetics. Research on fruit flies has contributed enormously to developmental biology. The fruit fly genome “consists of about 13,750 genes on 4 chromosomes”(A. Allen lab manual (2016)). Fruit flies are great for research because, it only has 4 chromosomes, which are extremely manageable and it is low in cost and maintenance. Also, male fruit flies lack recombination, which makes genetics simpler. The fruit fly database; flybase.org was also a semi-confusing database like yeast. However the database had plenty of information to help me answer my questions for the specific gene that was being researched. From the just the first page, there was information on the gene name, what chromosome it was located on, and other general

Another man who contributed greatly to the study of genetics, was an American biologist by the name of Thomas Hunt Morgan. He studied the ways that characteristics were passed from one generation of fruit flies to the next. He learned that the genes in fruit flies behaved in the same way as the genes in pea plants. He also noticed that certain genes were inherited together more often than random chance should allow.