INTRODUCTION TO DROSOPHILA GENETICS DROSOPHILA CULTURE We will study basic principles of Mendelian inheritance with the use of the fruit fly‚ Drosophila melanogaster [the name means “black-bodied fruit-lover”]. Drosophila was one of the first organisms to be studied genetically: its small size‚ short life cycle (10 ~14 days at 25oC)‚ high reproductive rate (an adult female can lay 400-500 eggs in 10 days)‚ and ease of culture and genetic manipulation have made it perhaps the best understood animal
Premium Allele Chromosome Gene
Professor Heeneman Bio 152-100 February 27‚ 2013 Fruit Fly Lab Data from my group: Vestigial winged offspring: 0 Wild Type winged offspring: 10 Data from class: Vestigial winged offspring: 42 Wild Type winged offspring: 237 Data from all classes: Vestigial winged offspring: 345 Wild Type winged offspring: 1‚297 The hypothesis of the fruit fly mating experiment was that when placing homozygous recessive virgin female fruit flies in a mating tube with
Premium Zygosity Reproduction Allele
The Frequency of Mutations among Second Generation Drosophila melanogaster INTRODUCTION This experiment involved observing and comparing the relative frequencies of inherited dominant and recessive genes in a population using the common fruit fly Drosophila melanogaster. In this experiment‚ we demonstrate how dominant genes are selected over recessive genes (Mendel’s Law of Independent Assortment). Hypothesis: If we cross two heterozygous individuals‚ our observed offspring in the second
Premium Genetics Gene Evolution
mammals is also present in other animals‚ specifically in Drosophila‚ and if so‚ to try to understand the neural pathways that are involved in the process of memory acquisition and consolidation‚ and understanding how the information acquired from the learning experience is stored and protected during the period of delay. In other words‚ the researchers are trying to investigate the mechanisms of long-term memory consolidation in Drosophila through a courtship memory paradigm so as to determine whether
Premium Psychology Memory Brain
Cited: College Entrance Examination Board‚ AP Biology Lab Manual‚ 2001.
Premium Osmosis Concentration Diffusion
Dissolved Oxygen and Aquatic Primary Productivity By: Mayank Makwana AP Biology Mrs. Biondo September 19‚ 2012 Design Diagram Dissolved Oxygen: Title: The effect of the temperature of water on the concentration of dissolved oxygen Hypothesis: If the temperature of the water is increased‚ then the concentration of dissolved oxygen will decrease. |Independent Variable: Temperature of water (Cº)
Premium Oxygen Error Temperature
Chromatography Experiment of the Drosophila Eye Pigmentation Pathway Introduction: How can the use of chromatography help explain single gene mutations of the drosophila melanogaster bio-synthetic pigment pathway? This experiment was meant to help connect the mode of inheritance with different eye color mutations and pinpoint where they occur in the pigment pathway. The drosophila eye color is a result of two bio-synthetic eye color pathways‚ this is expressed as a trait or phenotype‚ a multigene
Premium Eye color Mutation Enzyme
Genetics of Drosophila Lab Report: The test of heredity in fruit flies In my testings with breeding the fruit flies‚ I learned that the purpose of breeding them was to test how genetics pass from generation to generation‚ also known as heredity. We attempted to breed the flies and get them as close to a 9:3:3:1 ratio as possible. This would lead to an acceptable trait ratio. My hypothesis was that if we were to breed the flies in a stable environment‚ the most common fly (or the fly with the highest
Premium Male Female Sex
The process of deriving the new drug starts in the laboratory. The chemical formula of the drug are composed in the lab and also called as the vitro testing. This type of testing performed before the drug can be tested on the animals or humans. The vitro testing gives the chemical description of the new drug and formulates the base and additional supplements. After vitro testing is done‚ the vivo testing starts on the animals. This process includes testing to figure out the possible side effects
Premium Pharmacology Clinical trial
AP Bio Evolution Study Guide (Ch 22-25) Chapter 22: Descent with Modification Know the basic ideas that predated the ideas of Darwin Natural Theology Cuvier Lyell Linneaus Lemarck Theory of Use and Disuse Theory of Acquired Characteristics Darwin Voyage of the Beagle (How did this lead to his ideas regarding evolution?) Adaptations (What are they? How are they involved in evolution? How do they come about in a species?) Descent with Modification (modify preexisting structures) Natural
Premium Evolution Biology