"Drosophila vestigial wings" Essays and Research Papers

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    The X/Y sex chromosomes and the 2‚3‚4‚ autosomes. It is important to know the differences between the two adult sexes in order to record and collect the data accurately. The major sexual differences in Drosophila are apparent in the abdominal segment of the flies. In males‚ the last abdominal segment of the male is much larger and rounded than that in the female. Another indicator is the presence of sex combs present in males. Male flies has a small‚ densely

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    Procedure

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    Alexandra Pentel Developing an Environmentally Friendly Pesticide Procedure In order to begin‚ four vials of wild type Drosophila melanogaster‚ a set of vials‚ netting‚ sponge plugs‚ media‚ yeast‚ and FlyNap® were obtained from Carolina Biological Supply Company. Catalog numbers 172100 and 171905 were ordered which included the various fly vials and a basic fly care set. All experiments were conducted at Dr. Halloran’s school lab at 7400 San Jose Boulevard‚ Jacksonville‚ FL 32217. All usage of

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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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    POPULATION GENETICS (FRUITFLY) NAME: Christopher N. Anah CLASS: BIOL 2108L INSTRUCTOR: DR. JAMES BATTEY OVERVIEW: In this lab the Drosophila melanogaster fly species were used to do genetic test crosses. Students were taught how to manipulate phenotypes‚ collect data from F1 through the F4 generations‚ and analyze the results.INTRODUCTION: The basic principles of genetics are very often shared by a vast array of organisms. For that reason‚ it is usually only necessary to study the genetic

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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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    person guessing‚ has a 1 in 5 chance in guessing the card correctly‚ so the average person has a 20% chance of success in this experiment‚ taking in the probability of a false positive. In experiment two‚ the study was conducted from 8 cultures of vestigial flies. Four cultures were placed

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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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    Igcse Biology

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    BIOLOGY Paper 2 Core 1 hour 15 minutes No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write in dark blue or black pen. You may use a pencil for any diagrams or graphs. Do not use staples‚ paper clips‚ highlighters‚ glue or correction fluid. Answer all questions. 1 2 3 4 5 6 7 8 9 Total This document consists of 14 printed pages and 2 blank pages. IB10 11_0610_21/4RP © UCLES 2010 [Turn over 2 1 (a) Fig. 1.1 shows a mammal. For Examiner’s

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    Pines

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    Pines are trees in the genus Pinus (pron.: /ˈpaɪnəs/)‚[1] in the family Pinaceae. They make up the monotypic subfamily Pinoideae. There are about 115species of pine‚ although different authorities accept between 105 and 125 species. Contents  [hide]  * 1 Etymology * 2 Taxonomy‚ nomenclature and codification * 3 Distribution * 4 Morphology * 4.1 Foliage * 4.2 Cones * 5 Ecology * 6 Uses * 6.1 Food uses * 7 See also * 8 Notes * 9 References * 10 Bibliography *

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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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