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
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Introduction Drosophila melanogaster is a common fruit fly that has been useful for most experiments in the study of Genetics. The male and the female fruit fly are similar and different in regards to how they look‚ structurally. They are similar because both genders have a head‚ thorax‚ proboscis‚ antennae‚ eyes‚ and mouth parts. However‚ males are smaller than females and have about five abdominal segments as opposed to the seven that the female has. The life cycle of these fruit flies consist
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BIOTECHNOLOGY FOR BREEDING: FELDA’S EXPERIENCE Sharifah Shahrul Rabiah Syed Alwee1‚ Seng Tzer Ying1‚ Sheryl Leao Ling Jiun1 and Vengeta Rao2 1 Felda Biotechnology Centre‚ PT23417 Lengkuk Technology‚ 71760 Bandar Enstek‚ Negeri 2 Sembilan‚ Malaysia and Green Hectares‚ No. 2‚ Jalan Jed 1‚ Taman Jed‚ 43800 Dengkil‚ Selangor‚ Malaysia ABSTRACT FASSB has embarked on the development of molecular markers for key traits since 2006. The large number of quantitative trait loci (QTLs) identified
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Yukl’s Multiple-Linkage Model Yukl’s linkage model of management is based on the notion of shared direction (Winston and Patterson‚ 2005)‚ between organization process and managerial influence on those processes through leadership to achieve a common goal. In plain terms at the interpersonal levels‚ the manager influences and persuades followers to work towards’ the organizational mission and objectives (Winston and Patterson‚ 2005). Types of variable in the Yukl
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ideas on how to tackle the issue. Once the government receives the ideas‚ the process then moves on to the linkage phase. Linkage institutions are the political channels through which citizens concerns become political issues on the public agenda. Some examples of linkage institutions are; political news and entertainment‚ interest groups‚ elections‚ and political parties. After the Linkage phase‚ the policy is then placed o the agenda. Policy making agendas are issues that attract the serious attention
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A particularly important category of genetic linkage has to do with the X and Y sex chromosomes. These not only carry the genes that determine male and female traits but also those for some other characteristics as well. Genes that are carried by either sex chromosome are said to be sex linked. Men normally have an X and a Y combination of sex chromosomes‚ while women have two X’s. Since only men inherit Y chromosomes‚ they are the only ones to inherit Y-linked traits. Men and women can get
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THE LINKAGES BETWEEN ECONOMIC MELTDOWN CAPITAL MARKET AND SUSTAINABLE DEVELOPMENT IN NIGERIA BY EGBULONU K.G Ph.D FORMER HEAD‚ DEPARTMENT OF ECONOMICS IMO STATE UNIVERSITY‚ OWERRI 08034083159 DURU ERASMUS .E. DEPARTMENT OF ECONOMICS PAUL UNIVERSITY‚ AWKA ANAMBRA STATE NIGERIA EMAIL:duruerasmuse@yahoo.com TEL:08030762153 ECHETA DESMOND .O. HEAD OF DEPARTMENT OF BANKING AND FINANCE IMO STATE POLYTECHNIC UMUAGUO IMO STATE‚ Tel:+2348037248832 ABSTRACT Capital market is the arm of the financial
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answer some questions that may come to mind when “Drosophila” and “Inheritance” are put in the same sentence. The Drosophila insect is a species of fly of five different variations which can be quite important in exploring some of the aspects of sex linkage. The following lab report is about one which was carried out using these very creatures as a test subject and three of Mendel’s propositions (“Characteristics are determined by genes which have two versions (alleles)‚ a normal allele and a mutant
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Chapter 12 (Part 2) Explain the principle of independent assortment and its relation to meiosis: The segregation of chromosomes in anaphase I of meiosis explains Mendel’s observation that each parent gives one allele for each trait at random to each offspring‚ regardless of whether the allele is expressed. The segregation of chromosomes at random during anaphase I explains Mendel’s observation that factors‚ or genes‚ for different traits are inherited independently of each other. Apply the
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mutant flies. (may include diagrams in experimental design) ❑ Diagrams of male and female wild type flies. ❑ Information about laboratory culturing of Drosophila melaongaster. Part II: Genetic applications ❑ Define: autosomal‚ sex-linkage‚ dominant‚ recessive‚ incomplete dominance. ❑ Statement of a rationale: in order to determine patterns of inheritance and support basic genetic rules ❑ Statement of purpose: in order to determine patterns of inheritance for the mutant apterous
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