How to Make a DNA Model Using Candy

How to Make a DNA Model Using Candy Making DNA models can be informative, fun, and in this case tasty. Here you will learn how to construct a DNA model using candy. But first, what is DNA? DNA, like RNA, is a nucleic acid that contains the genetic information for the reproduction of life.  DNA is coiled into chromosomes and tightly packed in the nucleus of our cells. Its shape is that of a double helix and its appearance is somewhat of a twisted ladder or spiral staircase. DNA is composed of nitrogenous bases (adenine, cytosine, guanine and thymine), a five-carbon sugar (deoxyribose), and a phosphate molecule. The deoxyribose and phosphate molecules form the sides of the ladder, while the nitrogenous bases form the steps. What You Need: You can make this candy DNA model with just a few simple ingredients. Red and black licorice sticksColored marshmallows or gummy bearsToothpicksNeedleStringScissors Heres How: Gather together red and black licorice sticks, colored marshmallows or gummy bears, toothpicks, needle, string, and scissors.Assign names to the colored marshmallows or gummie bears to represent nucleotide bases. There should be four different colors each representing either adenine, cytosine, guanine or thymine.Assign names to the colored licorice pieces with one color representing the pentose sugar molecule and the other representing the phosphate molecule.Use the scissors to cut the licorice into 1 inch pieces.Using the needle, string half of the licorice pieces together lengthwise alternating between the black and red pieces.Repeat the procedure for the remaining licorice pieces to create a total of two stands of equal length.Connect two different colored marshmallows or gummy bears together using the toothpicks.Connect the toothpicks with the candy to either the red licorice segments only or the black licorice segments only, so that the candy pieces are between the two strands.H olding the ends of the licorice sticks, twist the structure slightly. Tips: When connecting the base pairs be sure to connect the ones that pair naturally in DNA. For example, adenine pairs with thymine and cytosine pairs with guanine.When connecting the candy base pairs to the licorice, the base pairs should be connected to the licorice pieces that represent the pentose sugar molecules. More Fun With DNA The great thing about making DNA models is that you can use almost any type of material. This includes candy, paper, and even jewelry. You might also be interested in learning how to extract DNA from organic sources. In How to Extract DNA From a Banana, you will discover the four basic steps of DNA extraction. DNA Processes DNA replication - DNA unwinds in order that copies can be made for mitosis and meiosis. DNA transcription - DNA is transcribed into an RNA message for protein synthesis. DNA translation - The transcribed RNA message is translated to produce proteins. DNA Mutations - Changes in DNA sequences are known as mutations. Mutations can impact specific genes or entire chromosomes.

Foundations of Psychology Essay Example | Topics and Well Written Essays - 1000 words

Foundations of Psychology - Essay Example Through systematic observation of one's own conscious experience, subjects were exposed to different visual stimuli, optical illusions and auditory tones, and then made to analyze what they experienced ("Timeline," n.d.). Functionalism evolved as a reaction to structuralism. This school of thought was greatly influenced by the work of William James, the father of American psychology, and the evolutionary theory of Charles Darwin (Wagner, n.d.[b]). Functionalism was a more systematic and accurate method than structuralism in that the former focused on the purpose of consciousness and behavior while the latter focused on the elements of consciousness. Functionalism gave due consideration to individual differences, with a great deal of impact on education, supporting the view that "children should learn at a level for which they are developmentally prepared" (Wagner, n.d.[b]). According to behaviorism, all behaviors are acquired through conditioning, which happens through interaction with the environment, and behavior can be studied in a systematic, observable manner regardless of internal mental states (Wagner, n.d.[c]). There are two types of conditioning. Classical conditioning is a method whereby a naturally occurring stimulus is paired with a neutral stimulus so that eventually the latter evokes the same response as the former without the presence of the former. Operant conditioning uses rewards and punishments for behavior. Behaviorism does not consider free will or internal factors like moods, feelings and thoughts. The theory does not consider learning that does not use rewards and punishments. The adaptability of an individual in the face of new information is also not considered. Psychoanalysis, founded by Sigmund Freud, focused on the influence of the unconscious mind on behavior (Wagner, n.d.[a]). The six basic assumptions of the psychoanalytic theory are that unconscious mental processes exist, that all human behavior is motivated and purposeful, that past experiences influence current changes and reactions, that personality functioning is very complex and can be understood through the Id, Ego and Superego, that thinking processes involve energy, strength and force, and that human behavior is influenced by interaction with the environment ("Timeline," n.d.). Humanists like Carl Rogers consider people to be basically good or healthy and they see mental health as the normal progression of life; any distortion to this natural tendency is called self-actualization. According to Rogers, people naturally know what is good for them, and what leads them astray is the society with its conditions of worth, often leading to discontent when they do not reach the standards applied to them by others. This disparity between the real self and the ideal self is called incongruity (Boeree, 2003). A healthy individual involves the following qualities: openness to experience; living in the present; organismic trusting, doing what feels right and comes natural; freedom and taking responsibility for one's choices; and creativity. Gestalt psychology evolved in response to the

Analyse the impact of factors that influence health and Essay

Analyse the impact of factors that influence health and well-being.(Health and Behaviour) - Essay Example Education serves as the most effective platform to not only empower people but also to introduce changes so that children can meet new challenges of the time with higher efficiency and adaptability. This is especially true for people with disability who have to face multiple barriers in the mainstream schools which are distinct in their lack of facilitating environment and insensitive approach to their needs and requirements. The various barriers to their inclusion in the mainstream schools necessitate social support and wider awareness of their needs and requirements that promotes or hinders their participation in the mainstream activities. Carrington & Holm, (2005) assert that in Australia inclusive education has evolved from the notion of integrating students with disabilities into regular schools. The paper would be discussing the myriad practices within the social support that may be adversely impacting the successful inclusion of children with disability into the mainstream Aus tralian education system. Health and environment have emerged as major social issues that are significantly impacted by the social parameters (hhb, 2011). WHO (2005) has broadly defined health as not merely being absence of disease or infirmity but a complete physical, mental and social well-being. Thus, holistic aspect of health becomes an important issue which incorporates the environment paradigms that influence the overall well-being of the individual. Key & Dowrick, (2001) claim that people with disability have always been marginalized in every sphere of life including education, employment and community living. The discrimination has adversely impacted not only their participation in the mainstream life but it has also been detrimental to their development as an individual. Thus the social model of disability has emerged as vital input that redefined disability in terms of facilitating environment that promotes their

Pestle Factors Essay Example for Free

Pestle Factors Essay PESTEL analysis stands for Political, Economic, Social, and Technological, Environmental and Legal analysis. It is a part of the external analysis when conducting a strategic analysis or doing market research and gives a certain overview of the different macro-environmental factors that the company has to take into consideration. Political factors or how and to what degree a government intervenes in the economy. Specifically, political factors include areas such as tax policy, labor law, environmental law, trade restrictions, tariffs, and political stability. Political factors may also include goods and services which the government wants to provide or be provided and those that the government does not want to be provided. Furthermore, governments have great influence on the health, education, and infrastructure of a nation. Economic factors Businesses need to make money to continue to exist. They do this by listening to customers to ensure they keep their customers and attract new ones with good services that customers want and need. It is extremely important for businesses to respond to changes in demand from customers. They include economic growth, interest rates, exchange rates and the inflation rate. These factors have major impacts on how businesses operate and make decisions. For example, interest rates affect a firms cost of capital and therefore to what extent a business grows and expands. Exchange rates affect the costs of exporting goods and the supply and price of imported goods in an economy. Social factors Society’s habits and tastes are changing. People are more aware of the importance of the environment and becoming ‘green consumers’. Green consumers prefer goods and services that are ‘environmentally-friendly’ and which have less impact on the environment. They include the cultural aspects and include health consciousness, population growth rate, age distribution, career attitudes and emphasis on safety. Trends in social factors affect the demand for a companys products and how that company operates. For example, an ageing population may imply a smaller and less-willing workforce (thus increasing the cost of labor). Furthermore, companies may change various management strategies to adapt to these social trends (such as recruiting older workers). Technological factors Businesses are continually developing new technologies to provide the best solutions for the market place. Intelligent companies find out what the most appropriate technologies are for their businesses and use them. They include ecological and environmental aspects, such as RD activity, automation, technology incentives and the rate of technological change. They can determine barriers to entry, minimum efficient production level and influence outsourcing decisions. Furthermore, technological shifts can affect costs, quality, and lead to innovation. Environmental factors include weather, climate, and climate change, which may especially affect industries such as tourism, farming, and insurance. Furthermore, growing awareness to climate change is affecting how companies operate and the products they offer-it is both creating new markets and diminishing or destroying existing ones. Legal factors Legal changes that affect business are closely tied up with political ones. Many changes in the law stem from government policy. They include discrimination law, consumer law, antitrust law, employment law, and health and safety law. These factors can affect how a company operates, its costs, and the demand for its products.

Asthma :: essays research papers fc

Asthma is a respiratory disorder marked by breathing difficulty caused by temporary narrowing of the bronchi, the airways branching from the trachea to the lungs. Attacks usually are brought on by allergic reaction to ANTIGENS such as grass and tree pollens, mold spores, fungi, animal dander, and certain foods but may also be caused by chemical irritants in the atmosphere or by infections of the respiratory tract. Susceptibility to an asthma attack is based on hyperactivity of the bronchial muscles, which constrict on exposure to one or another of these agents. Episodes of asthma vary widely in severity and may last from a few minutes to several days. They may begin at any age but usually occur in childhood. In children, asthma often is associated with eczema, a skin inflammation that may reflect the tendency of the child to develop hypersensitivity reactions. The attacks usually become less frequent and less severe over the years and disappear in about half of all affected children before adulthood. In one form of asthma, called intrinsic asthma, however, the attacks become less frequent and less severe, but recovery between them is less complete. The bronchi in such patients become chronically narrowed, causing a progressive loss of capacity for physical exertion. The prevalence of asthma is only about 1 or 2 percent worldwide but varies greatly from country to country. In the United States, asthma affects about 6.9 percent of children. Typically, an asthma attack begins within minutes after exposure to a triggering agent. Symptoms include a sensation of tightness in the chest, coughing and wheezing, and difficulty in breathing. Persons having attacks usually find it more difficult to exhale then inhale, which causes overinflation of the chest and impaired lung functions. The breathing difficulty is alleviated somewhat by leaning forward and supporting the trunk with the arms on some object. Attacks that last several hours or more, even several days, despite treatment are called status asthmaticus. Patients with this condition develop a rapid pulse as the heart attempts to compensate for the lack of oxygen in the blood by beating faster. They also develop signs of exhaustion and dehydration. On a long-term basis, asthma usually is managed by determining the agent responsible for the attacks so that the patient can avoid it. When avoidance of allergens is not feasible, patients can sometimes be

The Awakening – a Feminist Analysis

The Awakening  is a  novel  by  Kate Chopin, first published in 1899 , set in  New Orleans  and the Southern  Louisiana  coast at the end of the nineteenth century. The plot centers on Edna Pontellier and her struggle to reconcile her increasingly unorthodox views on femininity and motherhood with the prevailing social attitudes of the turn-of-the-century  South. It is one of the earliest American novels that focuses on women's issues without condescension. It is also widely seen as a landmark work of early  feminism. Kate Chopin’s  The Awakening  was a bold piece of fiction in its time, and protagonist Edna Pontellier was a controversial character.She upset many nineteenth century expectations for women and their supposed roles. One of her most shocking actions was her denial of her role as a mother and wife. Kate Chopin displays this rejection gradually, but the concept of motherhood is major theme throughout the novel. Edna is fighting against the so cietal and natural structures of motherhood that force her to be defined by her title as wife of Leonce Pontellier and mother of Raoul and Etienne Pontellier, instead of being her own, self-defined individual.Through Chopin’s focus on two other female characters, Adele Ratignolle and Mademoiselle Reisz, Edna’s options of life paths are exhibited. These women are the examples that the men around Edna contrast her with and from whom they obtain their expectations for her. Edna, however, finds both role models lacking and begins to see that the life of freedom and individuality that she wants goes against both  society  and nature. The inevitability of her fate as a male-defined creature brings her to a state of despair, and she frees herself the only way she can, through suicide.All throughout â€Å"The Awakening,† Kate Chopin shows examples of how women should and should not act in society, in their homes, and with their husbands. In Edna Pontellier's adopted society, women are viewed more valuable when they conform into the mother-woman role. The mother-woman role is another form of men control, because it dictates how women should idolize their children, worship their husbands, and honor their isolated but inferior positions      As the novel progresses, Edna begins to make increasingly â€Å"open-eyed choice[s] to defy illusions and conventions†.Throughout the novel Edna becomes increasingly sexual, also becoming aware of her sexuality. Her bond of friendship with Robert seems harmless at first, but when he leaves for Mexico Edna believes she is in love with him: â€Å"For the first time she recognized anew the symptoms of infatuation. . . to torture her as it was doing then with the biting conviction that she had lost that which she had held, that she had been denied that which her impassioned, newly awakened being demanded† (Chopin 44).Edna has never had any sexual encounters with Robert, yet her emotions are so a roused by her close friend she is â€Å"infatuated† with him. Until this point, Edna seems to have not realized her feelings for Robert. In time she will call these feelings love, but at this point she is deeply upset because the man she is â€Å"infatuated† with is leaving. Edna’s emotions have been stirred for the first time in a long time, and she is unwilling to merely deal with the fact that the man who did this is leaving.Edna goes into a childlike pout, neglecting the familial duties she previously completed without fail. Edna’s awakening comes in two parts, the emotionally sexual awakening she experiences with Robert and the physically sexual awakening reached with Arobin (Seyersted, Kate Chopin 155). When Robert leaves her the first time, she is upset and broods, unable to believe he left so abruptly, and without saying goodbye. Arobin cannot gain this control over Edna’s emotions, as she distances herself from him and restrains herself fr om becoming too emotionally attached.Through her experience with Robert, Edna has learned to keep her emotional distance from men, lest she be hurt again. Edna is definitely a more sexual being now than previously in the novel. Before she recoiled at the touch of her closest friend, and now she is indulging in a forbidden kiss, holding Arobin close to prolong the contact. She is also more reserved. Arobin is quite anxious to see Edna again, but Edna pushes him away telling him she will see him at her dinner party, â€Å"not an instant sooner† (Chopin 82).Edna takes control of the situation, pushing Arobin away when he begs to see her again, having come to an enlightened state of being, learning from her mistakes and being an active force in her own life. Edna now makes decisions (such as moving out of the house) based on what is right for her, choices that will drastically affect her life, doing so with open eyes and a clear head. Edna is feminist in nature, but her feminism comes with a price, and not many people are strong enough to endure social ostracizing to enjoy personal freedom.Chopin wonderfully illustrates Edna’s dilemma, showing possible consequences of becoming enlightened outside the context of a broader social movement. By the end of the novel, Chopin still refuses to tell us whether Edna’s awakening is liberating, or if it is tragic. They argue that Edna Pontellier’s awakening is one of mental clarity, and her suicide is a triumphant act. By committing suicide Edna is finally freeing herself from social constraints and possession. Her suicide is an act of liberation, therefore Edna is the ultimate feminist.

The Odyssey And Beowulf s Morality - 1591 Words

Stories have always been a means of imparting the wisdom and knowledge of a society to young and old alike. Works like The Odyssey and Beowulf contain as much moralizing as children’s tales from Aesop’s Fables, the only difference being that The Odyssey and Beowulf’s morals are revealed in subtler ways. With the advent of the novel, many used the new genre as a way to moralize to women through novels such as Moll Flanders or comment on society such as A Connecticut Yankee in King Arthur’s Court. Yet, Henry James in his essay, â€Å"The Art of Fiction† seeks to dispel the notion that novels must moralize by offering a new, better purpose for the novel and allowing novelists artistic license in how they create their stories. However, though his ideas may have been fresh at the time, not all of them have held up over time. Though he sought to separate morality from the novel, the two still work together to create memorable, lasting fiction. Henry Ja mes had a threefold purpose in writing â€Å"The Art of Fiction.† He sought to respond to Walter Besant’s lecture wherein the novelist asserted that there were hard and fast laws which governed fiction, to defend the novel as a significant artistic genre, and to advise aspiring novelists (Richter, 434-435). In his final paragraphs, he addresses what he found most interesting about Besant’s lecture: the â€Å"conscious moral purpose† of the novel (Richter, 446). The morality of a novel â€Å"is a question surrounded with difficulties,† James saysShow MoreRelatedBeowulf: The Canonization of Anglo-Saxon Literature into Modern Popular Culture769 Words   |  4 Pages The cover of the November, 1975 comic book Beowulf: Dragon Slayer features a red-haired, horn-helmeted Beowulf swinging a large broadsword at a purple-caped villain also bearing two razor-sharp swords. As Beowulf rears up on his steed, a bikini clad woman, cloth slightly aside to reveal the shadow of a buttock is drawn falling, face filled with terror. In the background, a rising full moon and silhouetted gothic castle keenly set an atmosphere of dread and foreboding. Above the emboldenedRead MoreWhy Forrest Gump Is Very Much An Epic1584 Words   |  7 Pagesdifferent characterizations of the title character and minor characters along with additional events, or changes to the timeline. Many of the events in the story are comparable to happenings in other epic tales as well such as Homer’s epic poem, The Odyssey and to a lesser extent in its precursor Homer’s The Iliad. Odysseus’s journey and the epic adventure that was Forrest Gump’s life are quite reminiscent of each other. When Forrest Gump leaves Greenbow, Alabama to play football for the University of