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    Biology: Sordaria Fimicola

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    Introduction: The process of Meiosis involves 2 nuclear divisions that result in the formation of four haploid cells (2). Meiosis I is preceded by interphase‚ during which DNA synthesis occurs and each chromosome is made of two chromatids joined at the centromeres. In meiosis I‚ chromatids of homologous chromosomes may exchange parts by crossing over. During Prophase I homologous chromosomes come together and synapse. A tetrad consisting of four chromatids is also formed (2). In Metaphase I‚ the

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    Sordaria fimicola and Genetic Diversity 23 October 2013 Sordaria fimicola and Crossover Frequencies in relation to Evolution Canyon Introduction Evolution Canyon is an important natural phenomenon‚ which is widely studied for its benefit in helping recreate evolution in a short period of time. It helps us visualize evolution‚ a process that takes place in the span of millions of years‚ because the animals on the canyon go through “evolution” in a very short‚ examinable time. There are two types

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    Nicole Hain Bio 110 Sordaria fimicola Lab Report Introduction “Evolution Canyon” consists of two slopes in Israel that are close in proximity‚ but have a huge difference in environment. This makes the slopes a good model system for exploring evolution‚ especially because they’re so close to one another. The South Facing Side (SFS) receives more sunlight than the North Facing Side (NFS). This extreme sun exposure causes the South slope to have drought and arid conditions whereas the North side has

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    Meiosis and Genetic Diversity in Sordaria Biology 110 Lab Results Individual Data: Non-recombinant | Recombinant | Total # of Asci | Total # Recombinant Asci(B + C) | Frequency of Recombinant Asci(B + C)/total # asci) | Frequency of Type B Asci(B/total # asci) | Frequency of Type C Asci(C/total # asci) | Ratio B/C | # of Type A Asci(4:4) | # of Type B Asci(2:4:2) | # of Type C Asci(2:2:2:2) | | | | | | | Tan Spore Color | | | | 14 | 6 | 6 | 26 | 12 | (6+6)/26= 6/13 | 6/26=

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    Sordaria

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    closely related to Neurospora and Podospora‚ is a member of the numerous class Pyrenomycetes or flask-fungi. The natural habitat of the three species of Sordaria that have been the principal subjects in genetic studies is the dung of herbivorous animals. The species S. fimicola is common and worldwide in distribution. The species of Sordaria are similar morphologically‚ producing black perithecia containing asci with eight dark ascospores in a linear arrangement. These species share a number

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    Sordaria

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    2012 section 30 October 2012 Sordaria Lab Meiosis and genetic diversity in the model organism‚ Sordaria Introduction Meiosis is a process in which a cell divides to form four haploid (1N) cells. The Sordaria lab is a perfect way to see an example of how meiosis impacts the life of an organism. Meiosis can be broken down into parts that contain a few stages. These stages are similar to that in Mitosis (Prophase‚ Metaphase‚ Anaphase‚ and telaphase.) during Meiosis I‚ crossing over and independent

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    Sordaria Lab

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    Effects of Crossing Over in Sordaria fimicola Abstract Sexual reproduction in organisms is a cause for genetic variation. This can be seen through the process of meiosis in Sordaria fimicola because of the effects of crossing over and independent assortment that occur in meiosis I. Before performing this experiment we hypothesized that we would be able to see that crossing over did indeed occur in the S. fimicola. We tested our hypothesis by growing our own culture and observing it under a

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    Sordaria Lab Report

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    Meiosis and Genetic Diversity in Sordaria 979554296 Biology 110 Lab Introduction: In Israel there exists multiple spots in the mountains called Evolution Canyons‚ which are all located between a southern facing slope (SFS) and a northern facing slope (NFS). What’s particularly interesting about these locations is that despite the two slopes being on opposite sides of a small canyon‚ they exhibit extremely contrasting conditions. The SFS receives multiple times the UV radiation from the sun

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    Sordaria Lab Report

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    Meiossis and Genetic Diversity in Sordaria Meiosis and Genetic Diversity in the Model Organism‚ Sordaria. By: Katie Fiorillo BIO110 Lab TA: Lauren Smith October 30‚ 2012 A. INTRODUCTION: In this lab‚ the organism Sordaria fimicola was used to explore factors contributing to genetic evolution of sexual reproduction. These organisms are found in “Evolution Canyons‚” which occur when two mountain slopes with very different climatic conditions congregate with a comparatively small valley

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    Sordaria Research Paper

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    Meiosis and Genetic Diversity in the Model Organism‚ Sordaria fimicola” November 4‚ 2013 Biology 110- Basic Concepts and Biodiversity Fall 2013 I. Introduction The Earth is home to various forms of life contributing to the endless biodiversity that we see in our daily lives. In environments around the world there are distinct correlations between the environment and adaptations acquired by the organisms that live there. It has been shown that these adaptations

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