Demonstrating Genetic Principles Using Garden Pea Plants

1051 words, 5 pages

Intro Sample...


This lab is based on the experiment that Mendel did with the common garden pea plant, which is when he cross-bred them in order to see how genetics worked. His experiments had many unambiguous genetic markers, perfect to show in the classroom; thus in this experiment. In this experiment, the focus is on encoding six morphological traits: I-i locus which determines a yellow (I) versus a green (i) color, R-r which determines whether it is a smooth (R) or wrinkled (r) seed, Tl-tl for if it produces tendrils (Tl) or terminal leaflets (tl), Td-td for the presence (Td) or absence (td) of foliar dentation, St-st if it has normal (St) or reduced (st) stipules, and le-le to determine if it has a normal height (Le) or a dwarfed height (le).
With... View More »

Body Sample...




Results
Scores for pea characters


Monohybrid (3:1)

Dihybrid (9:3:3:1)

Beginning with the monohybrid cross, it is expected that out of the 60 samples, 45 should be dominant and 15 should be recessive. What actually happened was that, usually, there were more dominant species than expected, therefore less recessive species than expected. When using the chi-squared test to figure out the probability, all of the variables ended up within the acceptable range of differences between the expected and observed outcomes.
With the dihybrid crosses, on the other hand, there is a total of four possible outcomes in the F2 generation. The homozygous dominant traits, again, tend to have more than what is expected, but the rest of the information varies. When looking at the chi-squared test results, two out of the three crosses are likely to happen 5% or less of the time; these two are the crosses between stipules and tendrils, and stipules and seed texture. One out of the three results show a peculiar result, having a probability of greater than the 5% in occurrence. This is seen in the cross between tendrils and seed texture.
Discussion
For the monohybrid cross, it makes sense that there were more normal stipules, tendrils, and normal height pea plants in comparison to their counterparts because normal height pea plants were dominant over those dwarfed in stature; yellow was dominant to green; and smooth was dominant to wrinkled. Whichever trait is dominant will tend to appear more often that its recessive counterpart. This, overall, seems to be normal because in ...

Read More

Related Essays on Demonstrating Genetic Principles Using Garden Pea Plants

  • Microbiology

    1883 words, 8 pages

    Introduction: Biological organisms are classified uniformly in order to easily categorize and identify organisms. This classification, or taxonomy, uses the genus name followed by the species name, in Latin. By having a universal method of identifying bacteria allows for all scientists from any part of the world to identify the same species in an identical manner allowing for a precise of classification. Bacteria are distributed throughout the world in almost every conceivable habit. Bacteria are unicellular microorganisms, with variable shapes and nutritional needs. They lack a disti

    View Document »

    Genetic Engineering

    1534 words, 7 pages

    Human Genetic Engineering: The Future of Mankind Human genetic engineering has been a controversial topic with religious leaders since before they even knew what it was. Right off the bat the majority of people are skeptical about this touchy topic just because of the way it sounds, and of course once they hear what it’s all about, they either become even more hesitant to accept it, or reject the idea of it entirely. Some think that the process of human genetic engineering is a bad thing because technically it takes life. The argument is that even though life is being created through fertil

    View Document »

    India Power Sector Future

    6032 words, 25 pages

    Contents Executive Summary 2 1. Introduction 4 2. Demand of power 4 2.1 Energy demand with respect to sector has been continuously changing in India. 5 2.1.1 Agricultural sector 5 2.1.2 Industrial sector 5 2.1.3 Domestic Sector 5 3 Supply of power 5 4. Indian Power sector Growth – Recent and Future 5 5. Transmission and Distribution – 6 5.1 National Power Grid 7 5.2 Losses in T & D 7 5.3 Measures that can be taken to reduce losses are: 8 5.3.1 For Technical losses: 8 5.3.2 For Commercial losses: 8 6. India’s energy mix – Future investment required 8 7. Environmental issues 9

    View Document »

    Nuclear Energy

    1304 words, 6 pages

    Some may ask what nuclear energy is, the dictionary defines this as: 1. The energy released by a nuclear reaction, especially by fission or fusion. 2. Nuclear energy regarded as a source of power. Also called atomic energy Nuclear power was first known to be researched in the early 1900's, and by the world war; it reached its greatest peak by demonstrating to the world its power to destroy. Nuclear energy can be good or bad, depending on how the person works with this material; it is used for both sides good and bad. Scientists were unsure from the beginning of how it was possi

    View Document »

    Mule Killers

    665 words, 3 pages

    Mule killers The story begins in media res, the narrator starts telling the story right away without an introduction. The narrator is telling a story he is being told by his father, i.e. he tells a story in the story, and therefore it has a multiple point of view. It changes between a first person narrator and a third person narrator. It is an omniscient narrator, he is a messenger used to tell the story of his father and in some places in the text there appears comments from the narrator, for example: “It doesn’t matter; I can imagine it” (ll.49). We are in that way allowed access to his t

    View Document »

    Using Neural Networks To Forecast Stock Markets

    7649 words, 31 pages

    Using Neural Networks to Forecast Stock Market Prices Abstract This paper is a survey on the application of neural networks in forecasting stock market prices. With their ability to discover patterns in nonlinear and chaotic systems, neural networks offer the ability to predict market directions more accurately than current techniques. Common market analysis techniques such as technical analysis, fundamental analysis, and regression are discussed and compared with neural network performance. Also, the Efficient Market Hypothesis (EMH) is presented and contrasted with chaos theory and

    View Document »

    Biomass Power

    2784 words, 12 pages

    A REPORT ON INDIA’S BIOMASS POWER SECTOR SUBMITTED BY RAVI JAIN 1226109240 TO Prof. V.L.RAO IN PARTIAL FULFILLMENT OF THE COURSE BUSINESS ENVIRONMENT POLICY 17th December, 2009 GIIB, Visakhapatnam EXECUTIVE SUMMARY The total installed capacity in India is 1,50,000MW but we are facing a power deficit of around 10%. The per capita power consumption is 665 kWh and this figure is steadily increasing. To meet this increasing demand and reduce the current peak shortage, the Government has planned to double the existing capacity to 3,00,000MW over the next decade (2010-20). BIOMASS POWE

    View Document »

    Antioxidants

    5580 words, 23 pages

    Antioxidant From Wikipedia, the free encyclopedia Jump to: navigation, search An antioxidant is a molecule capable of slowing or preventing the oxidation of other molecules. Oxidation is a chemical reaction that transfers electrons from a substance to an oxidizing agent. Oxidation reactions can produce free radicals, which start chain reactions that damage cells). Antioxidants terminate these chain reactions by removing free radical intermediates, and inhibit other oxidation reactions by being oxidized themselves. As a result, antioxidants are often reducing agents such as thi

    View Document »

    The Door In The Wall

    661 words, 3 pages

    The Door in the Wall Confiding to his friend Redmond who narrates “The Door in the Wall,” Lionel Wallace relates that a preoccupation is gradually coming to dominate his life, one that is even affecting his career as a successful politician. Long ago as a lonely child of five he had wandered out of his home into the streets of West Kensington in London, where he noticed a green door set in a white wall. It was very attractive to him, and he wanted to open it, but at the same time he felt that his father would be very angry if he did. Wallace’s father is described as “a stern preoccupied lawye

    View Document »

    Atmospheric Pollution

    2138 words, 9 pages

    Atmospheric Pollution As I had started my research on atmospheric pollution, I had come to find that it all coincides with global warming. Due to the gases that are being released in the air from vehicles, it starts to destroy the atmosphere. However, it is not just the gases from the vehicles, there are also gases from power plants and aerosol cans, for example, hairspray. Smokers also contribute to the pollution in the atmosphere. All of this will be discussed further into the paper. The one thing that was asked was to give a detailed description of the problem. Coming up with a d

    View Document »

More Popular Essays

Research help is just moments away!