Nettie Stevens Essay, Research Paper
Nettie Stevens
Nettie Maria Stevens was born in 1861 in Cavendish,Vermont. She was an American biologist and geneticist, whose research proved that chromosomes determine the sex of an organism. She completed in only two years the four-year course at Westfield Normal School in Massachusetts. Nettie graduated with the highest academic scores in her class. She recieved her B.A. in 1899 and her M.A. in 1900 at Stanford.
Nettie studied Tenebrio molitor beetles and found that unfertilized eggs in female beetles always contain an X chromosome. Sperm from male beetles contain either an X chromosome or a Y chromosome. She found that eggs fertilized by sperm carrying the X chromosome produce female beetles. The combination of egg and Y-chromosome sperm produce male beetles.
Edmund Beecher Wilson, a biologist from Columbia University in New York City, made this same discovery at about the same time as Nettie. Nettie also established that chromosomes exist as paired structures in body cells.
Nettie Stevens was not credited very well for her discovery. Instead, someone else was given the credit even though Nettie had done all of the work.
Nettie gained notoriety after her death in 1912, from Thomas Hunt Morgan. He stated:
Modern cytological work involves an intricacy of detail, the significance of which can be appreciated by the specialist alone; but Miss Stevens had a shre in a discovery of importance, and her name will be remembered for this, when the minutiae of detailed investigations that she carried out have become incorporated in the general body of the subject.
Nettie’s name didn’t become famous and not much credit was given to her for her discoveries, but she was given some credit for what she established.
I think that Nettie Stevens is a brilliant woman. She made a very important discovery which effects even our lives today. Her contribution to the world expanded our knowledge of the human body.
Другие работы по теме:
Color Purple Poetry Compare Essay Research Paper
Poetry Comparison No matter what, during some point of a person?s life, he / she is going to face a hardship, and they will have to overcome it. We have to stand up for ourselves to become strong.
House Of Mirth Loneliness Essay Research Paper
Jenny Lily Bart’s Loneliness: A Self-Realization Loneliness is a prevalent theme throughout Edith Wharton’s novel, The House of Mirth. The following passage relates to the theme of loneliness and dramatizes Lily Bart’s dilemma of poverty: “All she looked on was the same and yet changed. There was a great gulf fixed between today and yesterday.
Color Purple Essay Research Paper The book
Color Purple Essay, Research Paper The book The Color Purple was written by Alice Walker. The book was not written in a conventional manner. It was a series of letters spanning the life of Celie, the main character. Most of the letters were written by Celie and some by her sister Nettie. The theme of the book is to be true to yourself in spite of difficulties and never let go of what you believe in.
Color Purple Book Report Essay Research Paper
The Color Purple was written by Alice Walker and is 295 pages in length. This book is a dairy of a girl who has gone through many hardships during her life. It took me about two weeks to finished this book, give or take a little. This book tells the life of one girl who over case hurt and suffering over and over, to make her a truly wonderful person.
The Sweet Hereafter 2 Pg Including Works
Cited Page Essay, Research Paper Of all the novels I ve read, not that I ve read a lot, but The Sweet Hereafter , written by Banks, is by far the best. I especially enjoyed the first person narration used. The plot in this novel was dependent on three main events: the bus accident, Mitchell Stevens, Esq. (the lawyer), and the testimony of Nichole Burnell.
The Colonization Of Stevens Essay Research Paper
The Colonization of Stevens In the year 1954, two years prior to the setting of Ishiguro’s The Remains of the Day, the Suez canal was returned once again to the government of Egypt putting an abrupt end to the English imperialism and colonialism that had extended throughout centuries. The Remains of the Day by Kazuo Ishiguro serves as a conceit for the rejection of the British Empire by its colonized subjects.
The Color Purple Book Report Essay Research
Paper 1. The main character in The Color Purple is a young black Georgia girl named Celie. She is uneducated and uses a non-standard dialect when writing and speaking. She was born into a poor family. Her mother was ill much of the time, and there were too many children. She was raped by her father, who she later finds out is actually her step-father.
What Makes A Person A Homosexual Or
A Heterosexual? Essay, Research Paper What makes a person a homosexual or a heterosexual? To many of us it is specifically the fact that if one has sexual intercourse with another from their own sex they are considered to be a homosexual. If one is to have sexual relations with the opposite sex, they are considered to be a heterosexual.
The Color Purple 2 Essay Research Paper
The Color Purple By Alice Walker And Franny and Zooey by J.D. Salinger Alice Walker and J.D Salinger demonstrate how faith helps their main characters to discover their true potential. Both authors use their novels to show the readers how faith, religion, and human interventions can promote a positive and meditative change within a person.
Color Purple Movie Vs Novel Essay Research
Paper The Color Purple: Movie vs. Novel There poses a problem for the filmmaker that he or she is dealing not only with a mass audience but also in a form which does not allow reflection as the story progresses. Something else that a filmmaker has to keep in mind is that most people do not like having their own imagination criticized.
The Color Purple By Alice Walker Essay
, Research Paper Alice Walker?s The Color Purple presents the life-long struggle of Celie, a black Georgia woman, who yearns to obtain confidence and self-esteem. During the early stages of the novel, references to wagons are made, signifying the ?old days,? whereas towards the end of the work automobiles surface.
The Color Purple Essay Research Paper Andrea
The Color Purple Essay, Research Paper Andrea HansonEnglish 12The Color Purple Sometimes in literature, a character may discover that love can turn aperson’s life around. This idea can work in many ways. One may be unloved foryears and then in the future, he or she is loved. In the book The Color Purple byAlice Walker, Celie is a character that discovers that love can turn a person’s lifearound.
Color Purple Essay Research Paper Alice Walker
Color Purple Essay, Research Paper Alice Walker’s novel, The Color Purple, follows Celie down the winding road of her life. As a poor black girl living in the South, Celie endures and overcomes many hardships. As the novel opens, the readers learn that she has been raped repeatedly by her father, then later is forced into a loveless marriage with a man who treats her like a slave.
The Color Purple Essay Research Paper Celie
The Color Purple Essay, Research Paper Celie s journey toward self-definition in The Color Purple, by Alice Walker, is filled with moments of growth as well as of tragedy and abuse. Throughout her life she is mistreated and put down. While bad things continue to happen to her, Celie s instinct to survive never fails.
Themes Of The Color Purple By Alice
Walker Essay, Research Paper The Color Purple By Alice Walker The Color Purple is a story that is told openly and sincerely by a black woman named Celie. Throughout the course of the story, we are shown Celie’s struggle to find herself, love, confidence, independence, and the courage to fight and fend for herself.
Analysis Of The Man On The Dum
Essay, Research Paper Analysis of The Man on the Dump Through several writing techniques, Wallace Stevens paints a somber portrait in his poem The Man on the Dump. Stevens use of statements, lists, and punctuation gave me an overall sense of lazy joy suddenly changing to dark sadness.
The Directand Indirectimpact Of Rhetoric On The
Color Purple) Essay, Research Paper Emory Lott 12/05/96 English 1001 page 1 The Direct and Indirect Impact of Rhetoric In the world that we live in, rhetoric always affects and is a part of everything that happens. Rhetoric, in its broadest sense, is communication, and how people relate to each other. The movie The Color Purple is about relationships.
The Color Essay Research Paper The Color
The Color Essay, Research Paper The Color Purple by Alice Walker The Color Purple, by Alice Walker, is a very intense book to read. By intense, I mean it is a book touching very difficult and hard aspects of life of
Darwin Research Essay Research Paper Darwin was
Darwin Research Essay, Research Paper Darwin was born in Shrewsbury, Shropshire. He was the son of Robert Waring Darwin and his wife Susannah; and the grandson of the scientist Erasmus Darwin, and
The Remains Of The Day By Kazuo
Ishiguro Essay, Research Paper The Remains of the Day by Kazuo IshiguroThe passage in The Remains of the Day, by Kazuo Ishiguro, which best represents the theme of the story is found on page 116, last paragraph of the page. This passage is one of the final discussions Mr. Stevens has with respect to his trying to determine what makes a great butler.
Remains Of The Day By Kazuo Ishiguro
Essay, Research Paper Kazuo Ishiguro’s Remains of the Day is about the struggles one man, Mr. Stevens, has with relationships with his father, Miss Kenton and his employer, but the struggle he focuses on the most is to be a “great butler.” He pushes himself physically to work as hard as he can, as well as mentally to determine what makes a butler great.
Color Purple 2 Essay Research Paper
“Celie’s strengths as an African American Woman” Alice Walker s The Color Purple is a captivating and touching novel about life of a poor African American woman — Celie, living in the deep rural south at the turn of the twentieth century. During her difficult life, Celie writes letters to God in which she tells him about her being.
The Color Purple Essay Research Paper Byron
The Color Purple Essay, Research Paper Byron Hooper 11/18/96 The Color Purple film review The Color Purple The movie “The Color Purple,” directed by Steven Speilberg, was, in general, a
The Color Purple Essay Research Paper Kym
The Color Purple Essay, Research Paper Kym Hough6th Hour 11/2/00 The Color Purple The major characters in the Book The Color Purple by Alice Walker are: Celie, Nettie, Shug Avery and Mister _____. Celie is the narrator of most of the diary formed book. She is a black woman living in the first have of the 20th century.
Rogers Essay Research Paper Drawing from our
Rogers Essay, Research Paper Drawing from our experiances with formal education , we have come to agree with Rogers to some degree, but also disagree with some of the points that he made concerning freedom in the classroom. There are many components of the theory that would be helpful to the learning process of the student.
Analysis Of
‘Thirteen Ways To Look At A Blackbird’ Essay, Research Paper Analysis of ?13 Ways of Looking at a Blackbird? ?Thirteen ways of looking at a blackbird? by Wallace Stevens is a poem about what it means to really know something. In this poem, Stevens shows this connection by writing a first person poem about a poet’s observation and contemplation?s when viewing a blackbird.
Blah Essay Research Paper HJKLDfliahHJALHFFFFFFFFALIEWHIHCJHXZJFDHoueaAfter finding her
Blah Essay, Research Paper HJKLDfliahHJALHFFFFFFFFA:LIEWHIHCJHXZJFDHoueaAfter finding her sister’s letters, Celie decides to leave home with Shug. She tells Mr. ______ she is leaving and jams his hand with a fork when he tries to hit her. Before she leaves, she curses him for the way he has treated her and tells him he is cursedAfter finding her sister’s letters, Celie decides to leave home with Shug.
Color Purple Essay Research Paper Celie s
Color Purple Essay, Research Paper Celie s character highlights the detrimental effect of silence on black women. Individuals are silenced when they are denied agency in shaping their own experiences.
A Summary Of The Color Purple Essay
, Research Paper The novel begins with the rape of a young black girl named Celie by her father, Fonso. Her mother gies of mental illness and Celie gives birth to 2 children. Fonso leads Celie to believe he had them killed. Then, one day in town she sees her daughter with another woman. It is at this time that her sister, Nettie gains a boyfriend named Mr.______.
Color Purple Celie
’s Journey Essay, Research Paper The Color Purple Celie s Journey The Color Purple is the story of a poor black woman living in the south between World War 1 and World War 2. This was at a time when, although slavery had ended, many women were still virtually in bondage, and had to put up with many conditions that were reminiscent of the days of slavery.
Celie Essay Research Paper At the tender
Celie Essay, Research Paper At the tender age of fifteen, Celie, the main character in Alice Walker?s The Color Purple is raped by she knows as her Pa. Pa forces himself upon Celie and she gets ?big? or pregnant, not once, but twice. When Pa takes the children away, the first a boy and the second a girl, Celie believes that he kills them.