Report Investigation 12: Fruit Fly Behavior Abstract: In the lab that was conducted‚ students were supposed to examine the tendencies of fruit flies‚ specifically Drosophila’s‚ to move toward or away from important stimuli that aide in their survival‚ also known as taxis. Another objective for this lab was to identify the patterns and relationships between environmental factors and a living organism. Students are supposed to use two bottles to allow the flies to choose which side they
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Inheritance October 6‚ 2012 Abstract This lab involved a monohybrid reciprocal cross and a sex-linked cross utilizing Drosophila melanogaster fruit flies. After sexing the flies‚ placing them in media‚ and letting them cross breed‚ we analyzed and recorded the phenotypes that were observed. The P1 flies were anesthetized then sexed by observing their phenotypes and equally distributed into the media we made for their copulation. When a sufficient amount of progeny was
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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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Block 1 January 24‚ 2011 Introduction & Background Fruit flies have made a huge contribution towards knowledge about genetics‚ but for most people‚ they are just annoying insects that are attracted to their fruit. Their scientific name is Drosophila melanogaster‚ and to scientists‚ they have been a key to understand many principles of heredity including sex linked inheritance‚ epistasis‚ multiple alleles‚ and gene mapping. Fruit flies were the first organisms to be used for genetic analysis
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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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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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Crossing Crossing is a short story written by Mark Slouka in 2009. The story is concerned with the relationship between a father and his son. Some fathers like to take their sons out camping to create a closer bond and that is exactly what the father wishes to obtain‚ but most fathers would never dream of taking their sons out on dangerous trips. However this is the case in Mark Slouka’s short story. By the use of a description of the nature versus man Slouka presents the struggle of the father.
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Crossing The short story “Crossing”‚ written by Mark Slouka‚ begins as a straightforward account of a man who takes his son to a remote area where he remembers similar experiences with his own father. He carries their packs across a shallow but fast moving river‚ and then goes back and carries his son across. They spend one night exploring the area‚ but the next day when he recrosses the river‚ he knows that the current is a bit stronger than the day before. When he takes the boy back across‚ he
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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 only crossing the F-1 flies. 2
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