Genes - Definition, Function, and Mutations

Genes - Definition, Function, and Mutations Genes are segments of DNA located on chromosomes that contain the instructions for protein production. Scientists estimate that humans have as many as 25,000 genes. Genes exist in more than one form. These alternative forms are called alleles and there are typically two alleles for a given trait. Alleles determine distinct traits that can be passed on from parents to offspring. The process by which genes are transmitted was discovered by Gregor Mendel and formulated in what is known as Mendels law of segregation. Gene Transcription Genes contain the genetic codes, or  sequences of nucleotide bases in nucleic acids, for the production of specific proteins. The information contained within DNA is not directly converted to proteins, but must first be transcribed in a process called DNA transcription. This process takes place within the nucleus of our cells. Actual protein production takes place in the cytoplasm of our cells through a process called translation. Transcription factors are special proteins that determined whether or not a gene gets turned on or off. These proteins bind to DNA and either aid in the transcription process or inhibit the process. Transcription factors are important for cell differentiation as they determine which genes in a cell are expressed. The genes expressed in a red blood cell, for example, differ from those expressed in a sex cell. An Individual's Genotype In diploid organisms, alleles come in pairs. One allele is inherited from the father and the other from the mother. Alleles determine an individuals genotype or gene composition. The allele combination of the genotype determines the traits that are expressed or the phenotype. A genotype producing the phenotype of a straight hairline, for example, differs from the genotype resulting in a V-shaped hairline. Inherited Through Both Asexual and Sexual Reproduction. Genes are inherited through both asexual reproduction and sexual reproduction. In asexual reproduction, resulting organisms are genetically identical to a single parent. Examples of this type of reproduction include budding, regeneration, and parthenogenesis. Gametes Fuse to Form a Distinct Individual Sexual reproduction involves the contribution of genes from both male and female gametes that fuse to form a distinct individual. The traits exhibited in these offspring are transmitted independently of one another and may result from several types of inheritance. In complete dominance inheritance, one allele for a particular gene is dominant and completely masks the other allele for the gene.In incomplete dominance, neither allele is completely dominant over the other resulting in a phenotype that is a mixture of both parent phenotypes.In co-dominance, both alleles for a trait are fully expressed. Some Traits Determined by More Than One Gene Not all traits are determined by a single gene. Some traits are determined by more than one gene and are therefore known as polygenic traits. Some genes are located on sex chromosomes and are called sex-linked genes. There are a number of disorders that are caused by abnormal sex-linked genes including hemophilia and color blindness. Variation Helps Adapting to Changing Situations Genetic variation is a change in the genes that occur in organisms in a population. This variation typically occurs through DNA mutation, gene flow (movement of genes from one population to another) and sexual reproduction. In unstable environments, populations with genetic variation are typically able to adapt to changing situations better than those that do not contain genetic variation. Mutations Are From Errors and the Environment A gene mutation is an alteration in the sequence of nucleotides in DNA. This change can affect a single nucleotide pair or larger segments of a chromosome. Changing gene segment sequences most often results in non-functioning proteins. Some mutations can result in disease, while others may have no negative impact on or may even benefit an individual. Still, other mutations may result in unique traits such as dimples, freckles, and multicolored eyes. Gene mutations are most commonly the result of environmental factors (chemicals, radiation, ultraviolet light) or errors that occur during cell division (mitosis and meiosis).

A Comprehensive Guide on Writing a Character Analysis

A Comprehensive Guide on Writing a Character Analysis 10 Steps to Creating an Outstanding Character Essay Analysis Character analysis is an essay, which aims to describe a certain character from a book or a popular figure that exists in reality. Such paper is concentrated on personal features and character of an analyzed person. However, a high school character analysis greatly differs from a college one, because it requires more detailed research and has specific demands. Moreover, you also need to follow one of the formatting styles: MLA; APA; Harvard; Chicago/Turabian. If you are a college freshman or have never written a university character analysis before, you should be ready to face lots of requirements, including context, structure and thoughtful analysis. You can include personal stories and experience to support the topic. Below we have gathered the best 10 tips to write a flawless character analysis. A thorough research You must know every feature of the analyzed character, his personal qualities and background. That is why you should gather as much opinions and views, as possible. You should understand that the same character looks completely different in various sources, so it is important to stick not only to the initial book but also to other credible sources. They include: Newspapers; Magazines; Articles; Blogs; Videos. Shape your ideas with the help of an outline Outline is not a compulsory part of your character analysis if the opposite is not indicated by your professor. However, it is a very important section for your own convenience, because with its help you will always know what to write about, step-by-step. Without an outline you can lose track of the general flow of your essay and won’t be able to deliver a quality text. An outline is a plan, a list of all the ideas you want to share with the reader. Strong introduction and a thesis statement Every written assignment should always start with an introduction paragraph, which contains a thesis statement in the last sentence. Your goal is to prove the audience that you have serious reasons to write about a chosen character. You can insert a quote from the source text or provide interesting and unknown details about a person you want to tell about. However, such information should be general, without too much information. Describe hero’s character Your body paragraphs should contain information on all of the features you have found about the discussed person. Start with a powerful statement and then support it with evidence. Remind all of the episodes, which prove your point of view. For that purpose you will have to read the book from the first page to the last one. Write about the key conflict Even though your task is to discuss a person or a character, you should still explain what the main conflict of the analyzed piece is. This will help you to explain the reader why the analyzed character is good or bad, acts right or wrong, etc. If you are not able to identify the conflict on your own, turn to your professor or a professional writing company! Use clear language Some students think that a character analysis doesn’t require academic language and decide to use slang instead. However, your essay should always remain academic and contain clear English. Never use words, which you are not able to find in the vocabulary, as it may greatly lower your final marks. Make sure you choose a proper character type Every literature assignment should include specific terms, so when you analyze a character you should always define what his type is: Protagonist (the main hero); Antagonist; Major character; Minor character; Dynamic; Stereotypical; Foils; Single-dimensional; Three-dimensional. State your position You need to process various opinions and arguments to show the character both from good and bad sides. In addition, you need to present a fresh look on the plot of the story and on the character himself to interest the reader. Include questions without an answer You can tell the audience about unanswered questions from the text or ask them yourself. In such a way, your reader will think about your essay even after finishing it and may even want to continue the research. Get quality assistance If you are limited in time and have tens of other assignments to be delivered, we are there to help! Even if you don’t have a wish to work on a character analysis or have no ideas what to write about, there is no need to panic. Our professional writers and editors are always ready to create an original character analysis for you, meeting all of the demands and requirements.

Descriptive essay of favorite room Example | Topics and Well Written Essays - 500 words

Descriptive of favorite room - Essay Example My eyes are bleary from focusing on the bright computer screen, and my mind numb from all the battering it has taken in creating a segment of the computer program I am working on. I need to break for a while. My eyes lift up from the computer screen, and I see the door through which I come and go. There is the desire to walk through it. I turn my eyes away from it, only to confront the information board with its intimidating schedules and deadlines, and the calendar as a reminder of the passage of time. I swivel on my chair and my eyes fall on a large picture on the right. A waterfall gushes over, creating a mist over the green canopy of trees on either side of it. I feel the roar in my ears, sense the mist on my body, and my eyes feast on the soothing green of the trees. My benumbed mind awakens and I feel a sense of revival. I swivel further to the shelf and see the disarranged books and compact discs, but my eyes do not focus on them. They search in between this disarray of books and compact discs till they fall on the baseball bat and fielding gloves sticking out. I have only eyes for them. My mind races back to my school days and the gay abandon of that age. I can see myself, baseball bat in hand waiting for the next ball to be delivered. The howls and hoots echo in my ear, as I miss and I am out, but who cares. The joy of just being part of the game is the thrill. A host of faces of my boyhood friends parade in front of me. Those days have gone and will never come back, except in the mind’s eye to refresh me from time to time. I swivel again to the right and my eyes hit another picture. This time it is a picture of a lazy river winding itself among a splash of green and yellow – a field of daffodils. The poem my English teacher made me learn races through my mind and the words gently fall out of my lips, as I picture myself on stage, reciting it. â€Å"I WANDER’D lonely as a

Evaluate the ways in which employee and industrial relation issues are Essay

Evaluate the ways in which employee and industrial relation issues are related to strategic HRM - Essay Example d strategic management of human resource assets could allow a company to outperform the competition therefore it is important to understand how strategic HRM can help a company. Businesses may have access to the same level of technology and the tools for production but access to the right kind of human resources is often far more important. Once recruited, keeping employees engaged becomes a difficult task as individuals have to be motivated and developed according to their needs in order to keep them performing at their peak. Strategic HR management can help a company achieve that by earmarking those individuals who show promise and following a system where the highest performing employees are rewarded as well as promoted while the worst performers are asked to leave the company. GE is one company which uses a system of forced employee ranking based on their performance for the company and that system is an important part of the strategic management of human resources for them (Welch, 2005). The system used by GE is simple. Employees are ranked according to their performance without any ties and then the top 20% are rewarded with training, bonuses, stock options and other rewards. Half of all bonuses and management time is spent with the middle 70% but the bottom ten percent of the pile is simply shown the door at the end of the year. They may be shifted to other departments or other divisions of the firm but they are not retained if their performance does not rise sufficiently (Welch, 2005). Welch (2005) suggests that in terms of strategic HRM, the middle 70% is the most valued asset for a company since they do most of the work. With training and attention, this group can produce many stars for the company in the future. However, for the bottom ten percent, performance evaluation reports, employee performance meetings and a record of the missed targets need to be maintained so that when the time comes for the parting of ways, there is no uneasy surprise for

Media studies †Life on Mars Essay Example for Free

Media studies – Life on Mars Essay How does life on mars (2006) use visual codes, technical, audio and narrative codes to create a sense of excitement and encourage the audience to watch. In this first episode of Life on Mars there are many different codes and conventions used to make this series instantly appealing to the audience. The episode is excellently paced and smartly directed, getting us into 1973 within 10 minutes and introducing new characters effortlessly. Sequence 1 of life on mars gets the audience instantly familiar with the genre, the episode begins with a police car chasing down a suspect which quickly shows us this is a hybrid police crime drama. The diegetic sounds of police sirens and dogs along with the non diegetic music, a heartbeat which is corresponding with Sam the detective in the police car creating suspense as we get a feel for how Sam is feeling as the heartbeat signifies his nerves also introducing the audience to protagonist Sam Tyler, these audio codes add up to create an exciting police chase which again expresses the genre of Life on Mars. Once out of the car Sam is forced to chase his primary suspect down an ally way in a council estate in the city giving the audience a feel for the setting. The music isnt as dramatic while the chase is happening but speeds up during more dramatic parts of the chase which creates suspense. Cinema-verte is used when filming the chase which makes the audience feel almost part of the chase, this entertaining filming technique and creative use of music makes Life on Mars exciting to the audience creating enigma and encouraging them to watch on. This chase takes us up to Colin Raimes arrest bringing us to sequence 2. In sequence 2 Sams colleague and girlfriend, Maya, are interviewing suspect Colin Raimes. Sam and Maya facing Colin and his lawyers, which creates tension between these two sets of people. During the interview there is a close up of Colin Raimes which engages the audience creating tension and increasing the viewers curiosity as to what this suspect has done and makes them wonder has he done it or not? The diegetic recording sound in the background shows the viewers the interview is being recorded and shows the viewers the seriousness of the situation, the room is dark with little light which creates a professional mood, the dark setting is a technique used to scare the suspect in to talking, perfect for the situation. The narrative codes in this sequence reveal allot about Colin Raimes as he gets upset by the images he is being shown, we learn Colin sees a psychiatrist and his lawyers talk about how kids would throw fireworks at him on his estate. This is evidence to show that Colin is vulnerable and is possibly mad, the audience may take pity on him or take a different view on the suspect, this makes the viewers curious and increases their want to watch on. After the interview in sequence 3, Maya isnt done with the suspect and decides to follow him on her own, only to be kidnapped. Once Maya is kidnapped Sam becomes sad and heads out looking for her, there is a close up of Sams face and he is distressed with tears running from his eyes. This visual codes will make the audience feel sympathetic towards Sam and shows us perhaps he is feeling stronger than just friendship for Maya. Sams nerves eventually get the better of him when he has to stop the car to refresh himself, standing there half-heartedly he says into himself, The world is a scary place again this shows the audience he is thinking about Maya and wants to find her increasing their sympathy for him and overall making the viewers want to continue to watch to see the conclusion. The different audio codes used express Sams feeling for Maya as the non diegetic music plays softly whilst he cries and thinks about her, this corresponds with the visual codes creating a sympathetic feel for the protagonist making the audience pity him. Sam is unexpectedly struck by a speeding vehicle which brings me to sequence four. Sam is struck very unexpectedly and this may have came as a shock to the audience, the accident is very unexpected and this is done deliberately to shock the audience as this scene is key to the viewers as it is where the storyline unfolds as after this it is based in 1973, where Sam time travels back in time. The diegetic sounds used are very impacting, when the car hits Sam, initially there is a loud sound to signify he has been hit, after this all that can be heard is silence which corresponds with how the audience will feel, as they will be shocked at what has just happened. This creates enigma and increases the viewers curiosity to keep watching and they are now introduced to how Life on Mars is going to take place. (back in time) will Sam be okay? what will happen next? are few of the questions the audience will be asking making them exciting and encouraging them to keep watching. Once Sam is hit and the audience are aware of what happened there is a close up of him laying vulnerably on the ground, this close up shot shows his eyes, wide open but yet not moving, with only police sirens and a heartbeat which is corresponding with Sams as he lays on the tarmac, creating tension and making the audience question if he is even alive. This close up then changes to a high shot as the camera slowly moves up, looking down on Sam which shows how empty the road is, no traffic just him. This suggests a change in time and expresses to the audience what has happened introducing them to 1973. These visual and technical codes all raise the audiences awareness causing them to ask questions and want to know the conclusion. Sequence five is the most important as, Sam wakes up to find himself in 1973, complete with 1970s era clothing and an 8-track playing Life on Mars in a car. Dazed and confused, Sam wanders back to the police precinct he works at, only to find it filled with cigarette-smoking, gum-chewing strangers hes never seen before. The music is significant as before the crash David Bowies 1970s song Life on Mars was playing on Sams ipod in the car. This is strange as he has travelled back in time to when this song was just out and extremely popular. Sams feeling are conveyed in different ways, with voices in his head from when he was a boy repeating, where are you? as he wakes up in a forest, obviously not where he was before. Creating enigma for the audience and making them aware of the time change increasing their excitement and want to continue watching. When Sam stands up in 1973, with no clue as to where he is the camera is low angled and is circling him while Life on Mars plays which really creates a confusing atmosphere showing that Sam does not know what is going on. This technical camera work helps to express Sams feelings and shows the audience a broader understanding of whats going on. Everything has changed in Sams world, The set designs and costumes effectively evoke the era, as well as the grittiness of the run-down neighbourhood and police precinct. Everything feels straight out of the 70s, from the clothing to the cars to the horridly ugly decorating in Sams apartment. Throughout the episode, Sam hears hospital noises and doctor voices and at one point sees a person on late night TV talking like a doctor describing Sam being in a coma. Sam becomes increasingly convinced that he truly is in a coma, and that none of this world is real. he believes it is all part of his imagination. These are some of the ways in which Sam portrays his feelings to the audience during this sequence. Which allows the audience to get to know Sam and begin to have a feel for his character encouraging them to continue to watch Life on Mars. Later Sam meets a young police officer named Annie Cartwright who he begins to open up to and express his opinion and at one point tells her I had an accident and when I woke up, I was here. Only here is 33 years in the past. Now, that either makes me a time-traveller, a lunatic, or Im lying in a hospital bed in 2006 and none of this is real. This quotation of what he says gives the audience insight into how he feels about the whole situation, this again allows the audience to engage with Sam and feel what he is going through, the audience will grow a certain like for Sam and this creates a sense of excitement and encourages the audience to continue to watch Life on Mars.

Essays --

New Technologies in Modern Architecture and Design â€Å"Technology† is a terminology which has just entered the contemporary literature of architecture. Despite the high significance and the widespread use of it, there is much ambiguity and inconsistency in the use of this term. It is certainly arguable that during the past decades, the world has been undergoing the most significant period of technological innovation and global restructuring since the first decades of the 20th century. Cities have always been centers of civilization and vitality that, through the years, have led to human progress through material and scientific advances. Globalization is now an unstoppable historical process led by technological change and involving the dissemination of science and new technologies. Rapid urbanization has only been made possible by the introduction of modern technology as a part of the development process. The use and application of modern technologies in designing and building well-lit constructions has a variety of definitions and interpretations. Indeed, architects contend that such uses of technology depend on conditions, background and the presumptions of the design and the location. The use of technology to design and build constructions with respect to their conditions and situations is considered to be a novel and particular concept in modern architecture. The accurate and appropriate use of technology can result in the creation of perfect and flawless buildings. Hence, the sensible use of technology along with the application of local civilization is the resolution to the current challenges in architecture. Complex construction and advanced building design require a mastery of structures and construction technology, and as ... ...theatres, complexes, restraunts, hotels and resorts, airports etc. The scope is so diverse in today’s times, that the aspects of Interior Design encompass all those contexts and more. This has led to Interior Design’s fragmentation into a variety of specialised micro-disciplines such as Traditional Design, Contemporary Design and Modern Design and further sub-divided into different categories like Residential Design, Office Design, Retail and Commercial Design, and Hospitality Design. What is Traditional Design? Traditional design often uses heavy, bold furnishings with rich earth tone colours such as brown, gold, or dark green. Traditional design is very ornate also, for example: claw foot chairs and embellished four post beds. Traditional pieces draw their inspiration from 18th and 19th century Europe. If you can picture it in a castle, it is likely traditional. Essays -- New Technologies in Modern Architecture and Design â€Å"Technology† is a terminology which has just entered the contemporary literature of architecture. Despite the high significance and the widespread use of it, there is much ambiguity and inconsistency in the use of this term. It is certainly arguable that during the past decades, the world has been undergoing the most significant period of technological innovation and global restructuring since the first decades of the 20th century. Cities have always been centers of civilization and vitality that, through the years, have led to human progress through material and scientific advances. Globalization is now an unstoppable historical process led by technological change and involving the dissemination of science and new technologies. Rapid urbanization has only been made possible by the introduction of modern technology as a part of the development process. The use and application of modern technologies in designing and building well-lit constructions has a variety of definitions and interpretations. Indeed, architects contend that such uses of technology depend on conditions, background and the presumptions of the design and the location. The use of technology to design and build constructions with respect to their conditions and situations is considered to be a novel and particular concept in modern architecture. The accurate and appropriate use of technology can result in the creation of perfect and flawless buildings. Hence, the sensible use of technology along with the application of local civilization is the resolution to the current challenges in architecture. Complex construction and advanced building design require a mastery of structures and construction technology, and as ... ...theatres, complexes, restraunts, hotels and resorts, airports etc. The scope is so diverse in today’s times, that the aspects of Interior Design encompass all those contexts and more. This has led to Interior Design’s fragmentation into a variety of specialised micro-disciplines such as Traditional Design, Contemporary Design and Modern Design and further sub-divided into different categories like Residential Design, Office Design, Retail and Commercial Design, and Hospitality Design. What is Traditional Design? Traditional design often uses heavy, bold furnishings with rich earth tone colours such as brown, gold, or dark green. Traditional design is very ornate also, for example: claw foot chairs and embellished four post beds. Traditional pieces draw their inspiration from 18th and 19th century Europe. If you can picture it in a castle, it is likely traditional.

Premature Specialization in Medicine

A medical doctor in today†s world is educated and trained in a traditional manner that seeks to insure the well being of his or her patients. Practicing medicine requires a strong science background and rigorous training; it is in the interest of clients and medical boards across the world to assure this. Thus, education in the science field is extremely important, even at the undergraduate level. Being a doctor is not just a job, nor is it solely a career. The medical profession is saturated with risk, for both the patient as well as the doctor. Doctors need early specialization in their education in order to acquire the skills necessary to handle delicate situations that occur on a daily basis. Malpractice must come to an end. The education that a doctor receives is a tool that he or she will use his or her whole life, (unlike a person who majored in something contrary to what their field of work is). A doctor†s experience is a vital instrument. Medical skill is a demand for certain practicing procedures and should be taken seriously. Knowing the legal system requires a doctor to have a good amount of experience can ease the concerns of family and loved ones, and also gives confidence to a doctor that he or she can do his or her work correctly. In order for doctors to get the best experience and education needed, training must take place early on in education. An abundance of science courses in college is a good start to prepare for medical school. Even though medical schools might cover the material that is offered in undergraduate biology and chemistry courses, repeat exposure to the material can only be beneficial to the student. The more experience that a student has in science and related subjects ultimately helps the future doctor in the long run. To ensure the level of maturity of a doctor, it is necessary to educate them on a broad level. According to Thomas, English, History, the literature of at least two foreign languages, and philosophy should come near the top of the list, just below Classics, as basic requirements, and applicants for medical school should be told that their grades in these courses will more than anything. (Thomas 115) Educating premed students in these courses is important, but science is the most significant part in an undergraduate program. It requires thought and practice as well as research, which are all fundamental keys to being a doctor. If a MD were certified with the least amount of experience allowed in the science field as possible, malpractice could be expected. On the other hand knowing two foreign languages is not vital to ones life. In fact, if a patient speaks another language translators can be brought in to fit certain needs. Doctors that focus on science and health are achieving what the profession requires. Understanding science to its full capacity ought to be the goal for premeds and medical students. To ensure the well fare of a patient, over achievement of science courses is necessary. Looking at the medical educational setup that is present in today†s Universities, premed students work hard at science and put forth the effort to make these classes their number one priority. According to Thomas, † If there are any courses in the humanities that can be taken without risk to class standing they will line up for these, but they will not get in to anything tough except for science.† (Thomas 114) Comprehending science can be hard and exhilarating, students should space out these courses while maintaining a level of understanding of other fields, but it is serious to make focus on science. Any student in the undergraduate level maintaining a good grade point average while taking 300, and 400 level science classes is bound for success. The risk factor for a doctor practicing medicine that has thoroughly been educated and has completed all necessary science classes, whether it be premature specialization or courses in medical school, will ultimately be a safe doctor and will create a more secure atmosphere in the field.