Using P-element Induced Male Recombination to Generate a Deletion in the DMAP1 Gene on Chromosome Two in Drosophila melanogaster Abstract: The goal of this study was to induce a deletion in the DMAP1 gene on chromosome two in Drosophila melanogaster through P-element mobilization. The DMAP1 gene may be an essential gene‚ however not much is known about it. We attempted to uncover the function of DMAP1 by creating a series of genetic crosses and selecting for brown-eyed non-stubble male flies
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The Dumpy Sepia X Wild Type Dihybrid cross using Drosophila Melanogaster. Abstract An experiment was performed on the fruit fly (Drosophila Melanogaster) in order to investigate Gregor Mendel’s postulates and determine if his laws were in fact correct. This was done by crossing Virgin Wild type females with Dumpy sepia males‚ and then inter-crossing their progeny (the first filial generation) in order to produce the second filial generation which was then studied. The results of this were designed
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. Drosophila crosses Introduction: The common fruit fly‚ Drosophila melanogaster‚ is mainly used for genetic studies. Fruit flies are easily cultured and can reproduce in as little as two weeks at the proper temperature. (Book) The purpose of this experiment was to study the transfer of genes between homologous chromosomes by crossing over. During our experiment we studied three X-chromosome genes: white (w)‚ miniature (m)‚ and forked (f). To begin this experiment we started with four
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The purpose of this experiment was to determine if two selected traits of Drosophila melanogaster‚ dumpy wings and sepia eyes‚ follow Mendel’s Laws of Inheritance through the F2 generation. Materials and Methods In week one‚ two crosses were set up. Dumpy females were crossed with sepia males‚ while dumpy males were crossed with sepia females. The dumpy phenotype consisted of shorter‚ smaller wings while the sepia phenotype consisted of brown eye color. For these crosses‚ all females were virgins
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pair of homologous chromosomes separates independently of the members of other pairs so the results would be random. This law is known as the law of independent assortment. In this laboratory experiment we will count and score the phenotypes of Drosophila melanogaster from a F2 generation of a dihybrid cross involving loci on the two major autosomes‚ chromosome two and three. A dihybrid cross is a cross between two parents that differ by two pairs of alleles. An example for this would be a parent
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Drosophila melanogaster is a fruit fly‚ about 3mm in length‚ and it is the insect that flies around spoiled fruit. A model organism has these traits: short life cycles and rapid development‚ small average size‚ big population‚ and fast reproduction (NCBI). Drosophila melanogaster meet all of the criteria for being a model organism. Also‚ fruit flies were used because they are very easy to handle and they require minimal resources to survive‚ as opposed to other organisms that might need more food
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offspring were genotype Bb. +1 point 2. In Drosophila‚ three autosomal genes have alleles with the following dominance patterns: Gray body (G) is dominant over black (g) Full wings (A) is dominant over vestigial wings (a) Red eye (R) is dominant over sepia eye (r) Two crosses were performed with the following results: Parents: heterozygous red‚ full wings‚ crossed with sepia vestigial wings Offspring: 131 red‚ full 120 sepia‚ vestigial 122 red‚ vestigial 127 sepia‚ full Parents: heterozygous gray‚ full
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bench crossed two parental generations: dumpy females x sepia males‚ and sepia females x dumpy males. My partner and carried out the sepia x dumpy cross. The following week (week 2)‚ we removed the parents so we wouldn’t confuse the P generation with the eventual F1 offspring.
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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 lay hundreds of eggs after
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Lab 6. Drosophila cross( start) Melat Mebrahtu Lab Instructor: Professor Hicks Principles of Biology Lab II‚ Wednesday 1:00 am- 2:00 pm Abstract The goal of this experiment was to examine the Drophisila fly cross for which the result was seen in two weeks .The Drosophila melanogaster has been a model organism that was experimented in the laboratory. It is a small fruit fly that feeds on and lives on spoiled fruit. It is one of the most valuable organisms in genetics
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