A Study Of Inheritable Traits in Fruit Flies INTRODUCTION The Drosophila melanogaster‚ more commonly known as the fruit fly‚ is a popular species used in genetic experiments. In fact‚ Thomas Hunt Morgan began using Drosophila in the early 1900’s to study genes and their relation to certain chromosomes(Biology 263). Scientists have located over 500 genes on the four chromosomes in the fly. There are many advantages in using Drosophila for these types of studies. Drosophila melanogaster can
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Drosophila melanogaster: Mutant Fruit Flies Jessica E. Phillips Genetics 3301 April 13‚ 2012 Introduction: Drosophila melanogaster better known as the fruit fly can be found near rotting fruits‚ vegetables‚ or anywhere where there is food that has rotted and or fermented. (Potter‚ 2010) D. melanogaster has four different stages in its life cycle. The first stage of D. melanogaster is the egg which can last for about one day; then turns into a larva. The larva stage last for about 7-8 days
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Due date: Week of Feb. 11th Fly Lab Assignments 1-4 INSTRUCTIONS Answer questions on a separate sheet of paper. Be sure to answer all parts of each question. Make sure you number all questions EXACTLY as they are numbered on this worksheet. This assignment will be turned in at the beginning of class before the quiz. Late assignments WILL NOT be accepted. DON’T FORGET: Fly lab/epistasis assignment on pgs. 41-42 in lab manual is also due at the beginning of lab. Assignment 1: Getting to
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Ivan Chavez B1 Invasive Species: The Mexican Fruit fly An invasive species is a species that does not naturally take place in a particular area and with its arrival brings economic‚ environmental or human harm (1). Recently there has been a bigger emphasis on invasive species (1). They are threatening our agriculture and forests and causing major impacts to our cities (1). The characteristics that make the species thrive in their environment vary with each. Their characteristics
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Problem How can you tell pigment separation by using Chromatography? Objective To prepare a chromatogram‚ separate pigments in a leaf and interpret the chromatogram. Hypothesis If I am to put a chromatography paper into a solvent‚ then it would separate the pigments depending on their Rf value. I think the pigments will separate in this order: Chlorophyll A‚ Chlorophyll B‚ Carotene‚ and Xanthophyll. Introduction Chlorophyll is the molecule that absorbs sunlight and uses its energy
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Lab title: Natural Selection Lab Purpose: * To understand natural selection and its effect on population. * Increase‚ decrease‚ survival and adaption Hypothesis: If I have a pink/yellow environment then the pink/yellow organisms will tend to survive. Ind. Variable: color of dots Dep. Variable: how many dots survive Constants: Environment‚ 6 colors/ amount of colors Materials: Cloth color: Pink (dark‚ medium‚ lights) yellow‚ paper dots: pink‚ blue‚ yellow‚ brown‚ green‚ and peach
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-Unknown Mixtures Lab- Purpose: The aim of this experiment was to find out the two substances of the unknown mixture from salt‚ sugar‚ dirt‚ and baking soda by looking at its properties. Hypothesis: Find the unknown substance by testing it out by heating it‚ pouring water‚ vinegar‚ and observing it . Procedure: 1) Materials- * 100ml of water * Vinegar * Bunsen Burner * 2 beakers * 1 spatula 2) First‚ do steps (3-6)to find out the properties of salt‚ sugar
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pouring from everybody gnats tend to swarm up around most of the people out on the field. Gnats and fruit flies are very similar. The only difference between the two‚ is that gnats form big groups outdoors‚ while fruit flies are mostly found indoors. Either way they’re living‚ they’re both extremely annoying. There are many different types of gnats‚ which are Fungus Gnats‚ Drain Flies‚ Midges‚ Sand Flies‚ and Black
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Seeds provide a food source that is not from meat and herbivores are able to survive. Different seeds can from both plants‚ and fruits. When plants want to reproduce the plants make seeds that can be dispersed by air‚ water‚ or animals and the seeds that survive find a place in the ground to start grow. For some plants‚ the seeds are in protective shelling like fruits and pinecones. This extra protection layer is there to allow the seeds to make it new ground by animals and humans carrying it around
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Chemistry 12 - Lab 19A Flow Chart (Investigating Chemical Equilibrium) PART 1: Put on safety goggles and lab apron Obtain 2 (Empty‚ Clean‚ AND DRY) 250mL Erlenmeyer flasks. Add approx. 100mL of DISTILLED water and 1mL of thymol blue solution to each flask Record the colour of this solution in note book FIRST FLASK: add a single drop of 0.1M HCl. Swirl the contents of the flask and continue drop-by-drop addition until a definite colour change is observed. SECOND FLASK: will serve as
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