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    An Experiment of Adaptation Introduction: Throughout history of time‚ organisms change in relation to their environment‚ consequently‚ adaptation is an essential property of life. This experiment is designed to test the adaptation of Drosophila melanogaster. This kind of insect is also called fruit flies‚ it has been widely used in scientific research because it has a short life cycle about two weeks and it is easy to keep large numbers of them (Manning). Two groups of this species will be used

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    chapter 10 bio. outline

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    patterns of two traits together. From this he formulated the law of independent assortment. A test cross can also be performed to discover if individuals expressing the dominant allele are homozygous or heterozygous. Geneticists today often use Drosophila melanogaster as a test subject. The wild type fruit fly is used to discover inheritance patterns in mutant flies. Mendel’s Laws and Probability Mendel used rules of probability such as the rule of multiplication to calculate the chance of inheriting

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    David Khal Process of Science What Can Fruit Flies Reveal about Inheritance? Lab Notebook Chi-Square test for Case 1 Phenotype Observed No. (o) Expected No. (e) (o-e) (o-e) 2 (o-e) 2 e Red eyes 31 33 2 4 0.1212 Sepia eyes 13 11 2 4 0.3636 2 (to the nearest ten-thousandth) 0.4848 Questions 1. Why is it important to remove the adults in the parental generation? To keep the tests accurate‚ it is important to separate the adults from the parental generation so you know you are

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    Fruit Flies Biology

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    that all organisms have in common. Common fruit flies like Drosophila are useful when studying genetics for several reasons‚ such as their small size that makes them easy to utilize in genetics experiments‚ they are low “Low Maintenance Creatures”. The small size of the flies allows us to separate and study them individually. Their small size (only a few millimeters long) however not too small that they

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    who am i

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    melanogaster. Disrupting the gene of D. melanogaster can cause many human like diseases. Thus the D. melanogaster fly model will aid in making human diseases’ genetic structure more comprehensive What are some strengths and weaknesses of using the Drosophila model system for human disease research? Strengths: Analyses indicate that D. melanogaster can serve as a model for a wide array of gene functions involved in human disease These fly disease models can be used to study the cell-biological basis

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    Endomitosis is the process of mitosis of chromosomes without undergoing nuclear or cellular division  to increase cell volume. This results in a single nucleus having many copies of a single chromosome (Painter & Reindorp‚ 1940). In this experiment‚ Drosophila melanogaster is reared in specific conditions and its salivary gland extracted to study endomitosis. I hypothesize that I will see endomitosis in the salivary gland chromosome of third instar larval D. melanogaster. My prediction to test my hypothesis

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    Process of Science What Can Fruit Flies Reveal about Inheritance? Lab Notebook Chi-Square test for Case 1 Phenotype Observed No. (o) Expected No. (e) (o-e) (o-e) 2 (o-e) 2 e Red eyes 3 Sepia eyes 1 2 (to the nearest ten-thousandth) Questions 1. Why is it important to remove the adults in the parental generation? It is important to keep the generations separate so that you know you are crossing only F1 flies. 2. What generation will their offspring be? The new offspring

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    Two Peg Test

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    sight are parallel. OBJECTIVE OBJECTIVE Peg Test is a surveying operation carried out to determine if the leveling bubble (bubble axis) and telescope line-of-sight (line of collimation) are parallel. TOOLS TOOLS Dumpy level Tripod Staff Tape Bubble staff FIELD WORK PROCEDURE FIELD WORK PROCEDURE i. Each group is required to perform a peg test to check the instrument.

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    Methyl Paraben

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    it acts as an antimicrobial agent. Methylparaben is an anti-fungal agent often used in a variety of cosmetics and personal-care products. Methylparaben is commonly used as a fungicide in Drosophila food media. Usage of methylparaben is toxic at higher concentrations‚ has an estrogenic effect and slow Drosophila growth rate in the larval and pupal stages at a lower concentrations. Methylparaben is produced naturally and found in several fruits‚ primarily blueberries‚ along with other parabens. There

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    Shaun Tan the Arrival

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    Using a subtle blend of aspects borrowed from sequential and storybook art‚ The Arrival is a graphic novel which explores the journey of a migrant.  The experiences are conveyed through illustrations that‚ through the monochromatic sepia color palette‚ crinkled texture and page layout‚ resemble old memories and photographs; lending the story the authenticity and inclusivity that are associated with family albums. The wordless nature of the story emphasizes the protagonist’s inability to communicate

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