Drosophila Melanogaster Introduction Drosophila mature through complete metamorphosis‚ as do all members of the order Diptera. [5] Diptera are commonly known as (true: having two wings) flies and include many familiar insects such as mosquitoes‚ black flies‚ midges‚ fruit flies‚ and house flies. [3] Drosophila melanogaster are most commonly known as fruit flies and are used in many genetic studies for a few simple reasons; they are small and easily handled‚ they have a short life cycle
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Chapter 10 Foundations of Genetics Lecture Notes 1 Foundations of Genetics Mendel and the Garden pea The father of modern Genetics is Gregor Mendel. Gregor Mendel (1822-1884) was an Austrian monk who lived in a monastery where the experiments with the garden pea were performed. Mendel’s work with the garden pea was the fundamental study which unveiled the laws that govern genetics and heredity. Mendel was the first to use the scientific method in a very systematic and analysed his results
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Marissa Lule Isaac Cuevas Juan Arias Andres Santana per.4 4/20/15 Pedigree Lab Introduction How can you spot different pattern of inheritance? When we started this lab the question (subject) we had to try and solve was ‘Which pattern of inheritance is present in the O’Smithsteinskis and AkimGarciaChan family pedigree? If when looking at the number of people shaded in our pedigree and find that the number is increasing each generationon then we can assume that the p
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Extension of mendelian inheritance Incomplete Dominance Incomplete dominance is a form of intermediate inheritance in which one allele for a specific trait is not completely dominant over the other allele. This results in a third phenotype in which the expressed physical trait is a combination of the dominant and recessive phenotypes. Incomplete dominance is similar to‚ but different from co-dominance. In co-dominance‚ an additional phenotype is produced ‚ however both alleles are expressed completely
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Punnet square: dihibyrid cross- 2 parents w/2 different traits Ex: seed shape & seed color Cross pure-lines 2. F1 offspring are all heterozygous‚ Cross F1 x F1 F2 generation shows individuals of both phenotypes‚ in a specific ratio 9:3:3:1 -this would only occur if independent assortment = 2 alleles separate & sort independently into gametes Mendel Rules of inheritance Different alleles for the same gene Principle of segregation-each gamete has 1 allele of each gene Principle
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Q: 1. Click all the combinations that produce horns. A: HH Hh Q: 2. Refer to your rules for Horns. Which allele (H or h) is the dominant allele? A: H Q: 3. Why do you think so? A: If I changed the allele to an H‚ the horns appeared. However‚ the h did not allow for the horns to show. Q: 2. Refer to your rules for Horns. Which allele (H or h) is the dominant allele? A: H Q: 3. Why do you think so? A: If I changed the allele to an H‚ the horns appeared. However‚ the h did not allow for the horns to
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Another 48 Hours‚ is a crime drama based on Jack and Reggie teaming up to bring an elusive criminal‚ the Iceman‚ to justice while a pack of outlaws tries to kill them. The film stars Nick Nolte as Jack‚ and Eddie Murphy as Reggie (Eddie Murphy Productions‚ 1990). Jack (Nolte) is an anti-social cop about to lose his badge while searching for an elusive criminal called the Iceman. Reggie (Murphy)‚ a passive criminal‚ has a “hit” on him by the Iceman. The outlaws that the Iceman has hired are evil‚
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BIOLOGICAL AND ENVIRONMENTAL FOUNDATIONS I. GENETIC FOUNDATIONS A. The foundations of development are heredity and environment. Heredity supplies our genotype (genetic makeup)‚ while heredity and environment combine to form the phenotype (observable characteristics). B. The Genetic Code 1. Chromosomes store and transmit genetic information. Each cell in the human body contains 23 pairs of chromosomes. 2. DNA (deoxyribonucleic acid) molecules make up chromosomes. 3. A gene is a segment of a DNA molecule
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THE STEPS WHEN INTERPRETING A PEDIGREE CHART Determine if the pedigree chart shows an autosomal or Xlinked disease. If most of the males in the pedigree are affected‚ then the disorder is X-linked If it is a 50/50 ratio between men and women the disorder is autosomal. INTERPRETING A PEDIGREE CHART Determine whether the disorder is dominant or recessive. If the disorder is dominant‚ one of the parents must have the disorder. If the disorder is recessive‚ neither
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NURS 315 Pathophysiology Module 1 Genetics Case Study Name _____Tammy Bills_______________________________________________ Review the following case study and answer the questions for each part located at the end of the case. Submit as directed to the drop box. “In Sickness and in Health” by Barry Chess Page A Trip to the Genetic Counselor Part 1—Pedigree Construction Greg and Olga were both a little worried. Starting a family presented choices and responsibilities far more long-reaching
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