Cereal rusts became a problem when the first cereal crops were grown in the fertile cresent. However it took two Italian scientists‚ Fontana and Tozzeti to give us the first detailed description of stem rust fungus in 1767. Thirty years later in 1797 it was given the name Puccinia graminis. Puccinia fungal diseases are the most destructive disease of cereal production. They occur all over the world. Stem rust is a fungal disease caused by the pathogen Puccinia graminis and is a significant disease
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Several experiments have already been conducted for the past years that is related to our study particularly Electro Culture. Christofloreau (1925)‚ a French farmer‚ has attracted attention with his apparatus to collect atmospheric energy for his crops. A specific example of the plant that he used in his experiment is a clover‚ which he compared to a normal growth of clover. With the application of the electricity through Antenna system‚ the growth of clover has increased to 7 feet high. He also
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What is a gene? A gene is a continuous DNA segment that is transcribed into a single preRNA molecule. A zoologist and geneticist named Thomas Hunt Morgan is known for his research with fruit fly. Thomas Morgan was born on September 15‚1866 in Lexington‚ Kentucky. In 1886‚ he received his B.S. degree at the University of Kentucky. In 1910‚ Morgan saw that one male fly had a distinct difference about it. Instead of normal red eyes‚ this fly had white eyes (Allen). He wanted to test the breeding of
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The Genetics of Fast Plants Kristin Phillips Dr. Orlando April 4‚ 2014 Abstract The experiment that was being completed was the genetics of plants using Fast Plants. The purpose of this project was to understand Mendel’s concept of a Dihybrid by performing similar crosses and calculated the phenotypes that are displayed. This project was conducted over many weeks by planting F1 seed and waiting for them to grow then cross-pollinating the F1 plants to produce the F2 seeds. Next students
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Hardy-Weinberg Principle Name: _______________________________ Period: ____ Show all work and box your answer for each of the following questions! 1. In a population at genetic equilibrium‚ the frequency of allele A is 0.5. a. What is the frequency of the homozygous dominant genotype (AA)? b. What is the frequency of the heterozygous genotype (Aa)? 2. If 16% of the individuals in a population at genetic equilibrium are recessive (aa). a
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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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Mealworms go through a similar life cycle to that of a butterfly in that they go through 4 different maturation stages during their life. These cycles in order are egg‚ larvae‚ pupae‚ and finally the adult stage. The freshly hatched mealworms have one major goal‚ to eat. The larval mealworms are a caramel color and are very active. Mealworms eat plant matter. As the larvae get larger they will molt multiple times throughout the larval stage. The mealworms will continue to eat until they have stored
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Extended Experimental Investigation | May 28 2013 | Drosophila melanogaster lab experiment Question: How do the dominant or recessive genes in particular traits in a cross between a male and female Drosophila determine the traits of its offspring? Aim: to establish whether characteristics produced from the offspring of a drosophila cross are recessive or dominant traits. Hypothesis: If certain phenotypes are expressed in the offspring from the cross of certain Drosophila‚ then the determination
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Our Lady of Mercy School Name: Victor Meira Pinto Date: 18/03/13 Subject: Biology Grade: 11th A Teacher: Ms.Braga Concept:_______ ------------------------------------------------- ------------------------------------------------- Human Traits Introduction: The study of genes‚ Genetics‚ is a branch in Medicine that studies how genes are formed‚ distributed and how they change the organisms’ characteristics. The
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Lauren Sullivan Plants Imperfections Abstract The purpose of this experiment was to plant different crosses and observe the different phenotypic ratios the plants present. The procedure of this experiment was plant six different crosses and water them correctly so that we could observe the different phenotypes and compare them to Mendel’s proposed ratios. Mendel‚ who had studied peas‚ did a similar experiment and came up with specific ratios that a monohybrid and dihybrid cross should show. His
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