Phenotype How a Gene Is Expressed As a Physical Trait

Phenotype is defined as an organisms expressed physical traits. Phenotype is determined by an individuals genotype and expressed genes, random genetic variation, and environmental influences. Examples of an organisms phenotype include traits such as color, height, size, shape, and behavior. Phenotypes of  legumes include pod color, pod shape, pod size, seed color, seed shape, and seed size. Relationship Between Genotype and Phenotype An organisms genotype determines its phenotype. All living organisms have DNA, which provides instructions for the production of molecules, cells, tissues, and organs. DNA contains the genetic code that is also responsible for the direction of all cellular functions including mitosis, DNA replication, protein synthesis, and molecule transportation. An organisms phenotype (physical traits and behaviors) are established by their inherited genes. Genes are certain segments of DNA that code for the production of proteins and determine distinct traits. Each gene is located on a chromosome and can exist in more than one form. These different forms are called alleles, which are positioned on specific locations on specific chromosomes. Alleles are transmitted from parents to offspring through sexual reproduction. Diploid organisms inherit two alleles for each gene; one allele from each parent. Interactions between alleles determine an organisms phenotype. If an organism inherits two of the same alleles for a particular trait, it is homozygous for that trait. Homozygous individuals express one phenotype for a given trait. If an organism inherits two different alleles for a particular trait, it is heterozygous for that trait. Heterozygous individuals may express more than one phenotype for a given trait. Traits can be dominant or recessive. In complete dominance inheritance patterns, the phenotype of the dominant trait will completely mask the phenotype of the recessive trait. There are also incidences when the relationships between different alleles dont exhibit complete dominance. In incomplete dominance, the dominant allele does not mask the other allele completely. This results in a phenotype that is a mixture of the phenotypes observed in both alleles. In co-dominace relationships, both alleles are fully expressed. This results in a phenotype in which both traits are independently observed. Genetic Relationship Trait Alleles Genotype Phenotype Complete Dominance Flower Color R - red, r - white Rr Red flower Incomplete Dominance Flower Color R - red, r - white Rr Pink flower Co-dominance Flower Color R - red, r - white Rr Red and white flower Phenotype and Genetic Variation Genetic variation can influence the phenotypes seen in a population. Genetic variation describes the gene changes of organisms in a population. These changes may be the result of DNA mutations. Mutations are changes in the gene sequences on DNA. Any change in the gene sequence can change the phenotype expressed in inherited alleles. Gene flow also contributes to genetic variation. When new organisms migrate into a population, new genes are introduced. The introduction of new alleles into the gene pool makes new gene combinations and different phenotypes possible. Different gene combinations are produced during meiosis. In meiosis, homologous chromosomes randomly segregate into different cells. Gene transfer may occur between homologous chromosomes through the process of crossing over. This recombining of genes can produce new phenotypes in a population.

Philip K. Dick One of the More Prolific Science Fiction...

Philip K. Dick is one of the more prolific science fiction writers of the second half of the 20th century. His dark plots, themes, and characterizations differ greatly from those who preceded him. This has seemingly translated well onto the big screen, as at last count, nearly ten of his novels and short stories have been adapted into films. Several of these films have garnered critical acclaim for both their movie credentials and use of source material. Blade Runner, originally released in 1982 and based off a 1968 novel entitled Do Androids Dream of Electric Sheep? along with A Scanner Darkly, a 2006 film based off a book of the same name released in 1977, are two such examples. They provide an excellent base to compare the adaptations†¦show more content†¦Rather than rely heavily on action-oriented special effects, director Ridley Scott creates a futuristic environment that is at the same time both familiar and new to audiences. The sense of familiarity the viewer has wit h this future makes the modern advances in robotics and transportation introduced throughout the story more believable. In contrast, A Scanner Darkly is immediately noteworthy for its use of rotoscoping. The entire movie was first filmed as any normal movie would be. Afterwards, computer animators recreated the frames, using combinations of several techniques to create the appeal which director Richard Linklater envisioned. Though some would consider this a novelty, the rotoscoping helps recreate the distorted, dream-like sense of reality the characters in the film live in. Colors are flattened and perspective takes on a new feel, as the viewer sometimes feels detached from the environment, much like lead Bob Arctor feels on a daily basis while addicted to Substance D. Only time will tell if this technique still holds appeal after thirty years of like Blade Runner. As opposed to Blade Runner’s film noir style, A Scanner Darkly achieves its effect entirely post production. Both have a very strong impact and aid their respective storylines, so it is debatable as to which works better or has the more lasting appeal. What

Factors that led to the American declaration free essay sample

The stamp act congress were formed and they pleaded to the parliament o repeal the act. The act was repeal but the declaratory act took its place. Parliament did not admit the contention of the Americans that It was without power to tax them. On the contrary, It accompanied the repeal with a Declaratory Act. It announced that the colonies were subordinate to the crown and Parliament of Great Britain.. . [And] therefore had undoubted authority to make laws binding the colonies in all cases whatsoever.With the Declaratory act in place it gave way for the Townsend act to take action. In 1767, the Townsend act was passed by the reliant and it collected duties and customs on colonial imports and exports in the hands of British commissioners appointed by the king. It also Imposed a tax on lead, glass, paint, paper and tea. Lastly this act also gave the East Indian Company a monopoly on the import of tea. We will write a custom essay sample on Factors that led to the American declaration or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The Americans saw all these the same way they saw the stomp act. For them, only their local assemblies had the right to tax them.A group of persons known as the writ of assistance gave warranty searches to revenue officers. In Massachusetts court, the writ of assistance was opposed by James Otis in as well. He said What a scene Every man, prompted by revenge, ill-humor, or wantonness to inspect the inside of his neighbors house, may get a writ of assistance. Others will ask it from self-defense; one arbitrary exertion will provoke another until society is involved in tumult and blood. The writ brought so much hate to the colony that John Adams then stated, Then and there, the child independence was born.This was the overturn for the people of the northern colonies. Furthermore, the all duties were repeal except for the tea. This led too revolt known as the Boston tea party where 90,000 tons of tea was thrown away by Boston activists. The Intolerable act was passed closing the Boston Harbor. Around this time many assemblies who opposed the parliament were dissolved. With assemblies being dissolved, colonies took on a new phase to move forward and began to claim their right as English men and that parliament were unlawful.In December 1775, the parliament passed the prohibitory act that seized all trades in America. America was now outside of the kings protection American ships and cargo was now fair game for Royal Navy. What gave a good inspiration for the Americans was Thomas Pains pamphlet common sense. Paine was not only against parliament but the king as well. He summed up that the British constitution was bases on aristocracy and monarchy and that Americans had no choice but independence. The Townsend act was the turning point in the American Revolution.

The Gorge Yourself Enviroment free essay sample

â€Å"The gorge- yourself environment† We find foods everywhere we look; sitting along the roadsides, calling at you in bright colors from grocery store shelves, glowing in vending machines down the hallway. There is no way to escape the never-ending advertisements from fast food restaurant. This is where obesity begins; consuming more food portions than your body needs People need to set limits and health plans early in their life to overcome this new threat. In this research, journalist Erica Goode tries to evaluate the local and global influence of the fast food industry of the United States. Erica Goode is an award winning journalist and currently on the staff of the New York Times. In 1979, she got her master degree in social psychology. Goode relies on research studies in nutrition and public health to support her speculation. She was also awarded as a mass media fellowship sponsored by the American association for the advancement of science. We will write a custom essay sample on The Gorge Yourself Enviroment or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page She has also written for publication, such as, vogue, self, Mirabella and edited book called letters for children (1996). Due to her work and experiences, she has won awards for her writing from the national mental health association and American psychiatric association. As of result, we can say that Goode have been considered one of the most reputable name in the industry of journalism. Further more, she also show her background and adequate knowledge and experience with the industry, which gives her more credibility and dependability in writing about various issues regarding one topic. In this research she talks about making decision for what and how much to eat are dictated by many factor besides hunger. Bigger, cheaper, and more varied meals, heavily advertised and widely available, may induces people to eat more than they need to. This includes on her having direct contact with people involved in her research, supplied with facts. In the research, Goode tells about the fast food industries and how people are so tempted to it? She considered different important areas of the industry, not just focusing on how the industry cater the changing meets and demands of the customer, but also the different processes, procedures and policies connected to the way the products are made and the amount that average person consumes. First, the author enables to present the different global concerns about the negative impact of fast food towards the health of the public, which include obesity. She also manages to connect other important aspects of one supply chain of the company, which is the artificial maker of flavors, where in, she mentioned to be highly reserved. Despite America being one of the most industrialized nations, this country is definitely not one of the healthiest. Even though we are living in a country with great economic power and amazing technology, we are also living in a country with the smallest nutritional knowledge. Where the land is overwhelmed with obesity. Fast food restaurants are quick to deny the blame that is being thrown at them by angry consumers and health professions. Fast-food restaurants have become typical in the past 30 years and practically all of America takes part of the cheap prices, quick service and tasty meals. Convenient as they are, these meals contain practically no nutrients. They are made up of mostly saturated fats and refined carbohydrates and are packed full of sodium and sugar. Fast food consumption can lead to adverse effects on the quality of dietary caused by higher energy intake. Increased risk of obesity is a major concern for parents as fast food has been a prominent feature on diet especially for children. Obesity effects growth and development of children on many aspects. The result of obesity will remain a greater hurdle of development for children consuming fast food. The problem of childhood obesity in the United States has grown considerably in recent years. Obesity is one of the easiest medical conditions to recognize but most difficult to get by. Overweight children are much more likely to become overweight adults unless they adopt and maintain healthier patterns of eating and exercise. The biggest concern with children is the amount of exposure they get to these bad eating habits. Their busy parents use drive thru as a quick meal, and as a reward for good behavior. Their teachings show children that these meals are to be earned and give them a satisfying feeling while eating them. This helps develop a psychological connection that makes children feel more dependants on this food.

Computing Power Unleashed Essays - Central Processing Unit

Computing Power Unleashed Essays - Central Processing Unit Computing Power Unleashed This article mainly deals with the microprocessor chip, which is the computer's brain. This computer chip is responsible for the majority of the computers functions, it's commonly referred to as the Central Processing Unit (CPU). It receives and executes your instructions and determines if your computer understands software written for a Personal Computer (PC) or a Macintosh (MAC). The CPU chip size is small, about half the size of a business card, and just as small as your thumbnail. Intel is the leading manufacturer of microprocessor for IBM PC's, also other companies manufacture them also. However Apple, IBM, and Motorola have combined to create a power chip designed to be used in IBM PC's and Macintosh computers. However Intel microprocessors are as follows 8088, 8086, 80286, 80386, 80486, and the Pentium. The prefix 80 is commonly dropped. Then we look at the CPU package dealing with the electronic circuits. This chip is made of silicon, containing numerous tiny transistors with tiny wire protruding from it. The chip is encase in black plastic and sits on the motherboard which contains all of the computers circuitry. Microprocessors have all different kinds of internal processor speed, commonly known as clock speed. This represents the number of clock cycles a chip can produce per second and how quickly the CPU can execute commands. The speed is measured in megahertz (MHz) for example 25MHz equals to 25 million clock cycles per second. The CPU also contains the databus (a wire) across of it that moves the information.. Which is measured in bits (smallest piece of information). These chips are compared by the Intel Comparative Microprocessor Performance (ICOMP). They compare a number of industry standards to determine the power of different CPU's. Nevertheless a breakthrough in the 486 series chips surfaced, Intel offered the 486DX in 1989 better than 386, amore faster CPU with clock speeds up to 33MHz, including 1.2 million transistors compared to the 386's, and also offered a math coprocessor. The drawbacks was it was to expensive for the common person.. In 1991 Intel came up with the 486SX with no math coprocessor and speeds up to 25Mhz which made more affordable. Nonetheless, in 1992 Another breakthrough by Intel by introducing the 486DX2 with clock speeds up to 66MHz with slightly a higher price which made the perfect upgrade tool for people who could not afford it. Next the fifth generation was introduced by Intel again with high priced CPU, the Pentium processor, the most powerful one yet. Introduced in 1993 and operating between 66MHz to 100MHz. With the Intel's 3 new plants, prices went down for these chips. However id not stop there, Intel introduce another CPU processor, the 486DX4 with clock speeds of 75MHz to 100MHz with lesser cost than pentiums. Nevertheless, determining the CPU that rights for you must be a decision between the type of power you want and can afford.

Southwest Airpine Analysis Research Paper Example | Topics and Well Written Essays - 500 words

Southwest Airpine Analysis - Research Paper Example America’s public transport is quite efficient and this poses a challenge to Southwest’s operations. Bus companies are most notable for offering alternative short-distance travelling services to many Americans who prefer the road than the air. According to Gittell (2005), transportation factors such as scheduling, safety, facilities, security procedures are very important to travelers who might use these factors as criteria not to choose Southwest in favor of surface transportation. The existence of close to 1150 seaports in Texas makes it possible for Texas residents and visitors to travel conveniently and cheaply by sea. Furthermore, commuter rail services provided by organizations such as Capital MetroRail have greatly made surface travel as interesting and fast experience as travelling by air. The road network in Texas is no doubt superb considering the several high standard highways that dot the state. Many potential air transport customers opt to travel by bus (such as Executive Coach Inc) or by private means considering the specific conveniences that come with road transport including the option of making stopovers at interesting sites. The huge number of companies offering care hire services has made the surface travel experience great even to those who cannot afford town cars. Customers who may be dissatisfied by one or more aspects of Southwest’s services may opt to use other means of transport which have better services. One of the greatest strengths of Southwest Airlines is its product positioning. The company has developed an integrated marketing strategy that has helped position its product among its core target market (Lauer, 2010). Most air travelers in the US know that Southwest has the kind of products that they would choose. In its marketing communication, the company positions itself as a â€Å"low-fare, short-haul, high

Should Euthanasia be legalized Essay Example | Topics and Well Written Essays - 1000 words

Should Euthanasia be legalized - Essay Example Involuntary euthanasia is considered as murder in most countries. This can be said to be euthanasia performed to a person who was able to provide consent on whether he chooses to die or not. As much as this practice has come to form part of some countries in the world, in most countries of the world it is illegal and many are yet to embrace the positive sides of euthanasia. Euthanasia is a term that was first applied in the 17th century, and the term was used to refer to a quick and painless death. Towards the approach of the 21century, more countries got to embrace this as it proved to be a solution towards illness related issues. The act became in the light of many critics including religions like Christianity. According to the Bible, God is the Supreme Being and the giver of life, and from this angle most of church faithful has argued that no man has the authority over the life of another. Euthanasia as a practice is known to be administered to patients who have suffered long illn esses and do not seem to show any form of improvements. The type of illnesses euthanasia is administered are mostly terminal illnesses. A terminal illness is an illness which when one develops, he then has no chance to recover. Definition of terminal illness in a country like Netherlands is that terminal illness is a ‘concrete expectancy of death’, Some countries like Oregon has further illustrated the definition of terminal illness as that illness within reasonable judgments will produce death within six months, this is to state that with terminal illness, death is inevitable. When one suffers from terminal illnesses like cancer or a heart related illness, there are many implications in relation to what he goes through. A family member who develops a terminal condition goes through many hardships which are related to the illness he has, this is in relation to fear of his or her life ending, pain and constant stress. Chemotherapy is a cancer related treatment. In this t ype of treatment, chemicals are used as medication. This treatment is used in cancer treatment as a way of destroying cancerous cells. It is also meant as a way of ensuring that cancerous cells do not spread to other parts of the body. Chemotherapy treatment has been known to be effective in some cases around the world. One disadvantage of this type of treatment is that it is very expensive and not many people can afford it. Chemotherapy has long term and short term effects that a patient may face. Short time effects are such as constant dizziness, constipation, and nausea and general discomfort. The long term disadvantages are that the treatment is time consuming and there are always a risk of the cancerous cells regenerating after the treatment is through. It is for these drastic effects of terminal illnesses that some countries chose to embrace euthanasia as the way out. Spending all of the family money on one member of the family is a decision that can be said to be dangerous in relation to the well being of the other family members. The attempt to treat a family member diagnosed with cancer has been known to put families in tough financial situations. As much as one would give anything for a family member to get better, considerations should always be taken regarding how the remaining members are to continue living. Persistent vegetative state is a condition which is known to be one with both ethical and medical