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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Life on earth A. Procaryotic Organisms 1. The prokaryotic cell‚ unlike the eukaryotic cell‚ is able to survive in an oxygen-deprived‚ mineral-deprived and vitamin-deprived environment. The normal cells in our body‚ the eukaryotic cells need oxygen‚ vitamins and minerals to be able to survive. 2. The classification system of prokaryotes Classification of Prokaryotes Procaryotes can be divided into two distinct groups‚ archaea and eubacteria. Each group has its own characteristics
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LIVING THINGS * All living things come from other living things. * Ex: One single celled organism to another * DNA is copied & passed to offspring * The signature molecule of life * Ex: embryo- cells continually divide & develop EVOLUTION * Why do some organisms seem suited for their environment * Ex: Hummingbird- long beak for nectar in certain flowers * Ex: Cheetahs- take down faster prey * Adaptation- inherited characteristic that
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Tentative Lecture Schedule (If needed‚ the schedule will be revised. Please use Bb Learn for updates) Week Date Topic 2- Sept 1 Labor Day (University closed) Sept 3 What are the major components of the cell? Cells & organelles; organelle dynamics. What happens to a cell when an organelle malfunctions? Students who have not completed ALL of the assignments will be administratively dropped from the course Describe the structure of the plasma membrane. How does its structure
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INTRODUCTION INTO SEEDS AND FLOWERS REVIEW+MORE The cycle of life for a plant starts off as a seed. The seed goes through mitosis and turns into a nature plant‚ which sometimes may produce flowers and fruits. Fruits are where the new seeds can be found‚ continuing the life cycle. A monocot seed with 2 genetic codes (2N) would grow by mitosis. The growth by mitosis would lead to the growth of the apical tips. The meristem cells (stem cells) keep dividing. Then the zone of elongation‚
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Name: ________________________ Class: ___________________ Date: __________ ID: A Genetics test questions Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. Pea plants were particularly well suited for use in Mendel’s breeding experiments for all of the following reasons except that a. peas show easily observed variations in a number of characters‚ such as pea shape and flower color. b. it is possible to completely control matings
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helix shape and cpntaons genetic information Genes: units of hereditary information‚ short segments of DNA 1‚000 Human Genome Project Genome-wide association method Linkage analysis Next-generation sequencing Genes & Chromosomes Mitosis‚ Meiosis‚ & Fertilization 46 Chromosomes in 23 pairs
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DNA‚ which stands for Deoxyribonucleic acid is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms. The main role of DNA molecules is the long-term storage of information. These nucleic acids consist of long chains if chemical units called nucleotides. Nucleic acids are information storage molecules that provide the directions for building proteins. Described by the DNA testing centre‚ Inc.‚ “DNA is found inside the chromosome
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SBI3U1-04 Final Exam Study Notes Unit 1: Diversity of Living Things 1.1 Importance of Biodiversity Spotlight on Honeybees Very important‚ pollinate flowers allowing plants to reproduce Play vital role in food chain‚ if they die‚ all organisms that rely on them will die as well Dying because of pesticides‚ parasitic Varroa mite (infects beehives and sucks of bees’ blood)‚ the Israeli acute paralysis virus (immobilizes and kill bees) No genetic diversity = Less resistant to parasites
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the equatorial plate (middle) Anaphase: Sister chromosomes are pulled to opposite poles by spindle fibres Telophase: Spindle Fibres disappear and nuclear membranes form around the chromosomes at both poles Cytokinesis: Cell divides into 2 Meiosis: to make reproductive cells Makes haploid cell Division happens twice Crossing over of chromosomes Homologus: Similar cells but not the same‚ same genes‚ but with small differences. Part 1 Interphase – Chromosomes replicate Prophase 1 – Nuclear
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