Biology 30 Module 3 Reproduction and Genetics Lessons 10 - 13 Copyright: Ministry of Education, Saskatchewan May be reproduced for educational purposes Biology 30 i Module 3 Biology 30 ii Module 3 Table of Contents Module Three: Reproduction and Genetics Page Lesson 10 – Reproduction: Cells and Organisms Vocabulary ..................................................................................................... Introduction ..................................................................................................... Objectives ..................................................................................................... Deoxyribonucleic Acid (DNA) and Its Role ......................................................... Deoxyribonucleic Acid Structure ....................................................................... DNA and Protein Synthesis ............................................................................... Translation ..................................................................................................... The Genetic Code .............................................................................................. DNA and Reproduction ..................................................................................... Mitosis ..................................................................................................... The Actions of Mitosis and Cytokinesis ............................................................. Mitosis and Asexual Reproduction .................................................................... Meiosis ..................................................................................................... Comparison of meiosis and mitosis ................................................................... Spermatogenesis – Oogenesis............................................................................ Comparing Asexual and Sexual Reproduction ................................................... Parthenogenesis ............................................................................................... Invertebrate Reproduction ................................................................................ Summary ..................................................................................................... 4 5 6 7 7 10 12 13 18 19 20 23 27 31 32 33 34 35 36 Assignment 10 .................................................................................................. 39 Lesson 11 – Types of Reproduction and Development: Single Organisms to Vertebrates Vocabulary ..................................................................................................... Introduction ..................................................................................................... Objectives ..................................................................................................... Requirements for Successful Sexual Reproduction ............................................ External-Internal Fertilizations` ........................................................................ Pre-Fertilization ................................................................................................ Variations in Fertilization and Embryo Development ......................................... External Fertilization – Aquatic Development .................................................... Internal Fertilization – Oviparous Development (Amniotic Eggs) ........................ Internal Fertilization – Ovoviviparous Development ........................................... Internal Fertilizations – Viviparous Development ............................................... Viviparous Reproduction – A Closer Look at Placentals ..................................... Biology 30 iii 56 57 58 59 60 62 63 64 64 66 66 68 Module 3 Female-Male Structural Differences .................................................................. Hormonal control of Reproductive Cycles .......................................................... The Fertilization Process ................................................................................... Establishment of an Embryo in the Uterus ....................................................... Embryology and Fetal Development .................................................................. The Birth Process ............................................................................................. Offspring Survival ............................................................................................. Other Aspects Related to Human Reproduction ................................................. Summary ..................................................................................................... 68 70 73 74 74 79 80 81 87 Assignment 11 .................................................................................................. 89 Lesson 12 – Heredity and Genetics Vocabulary ..................................................................................................... Introduction ..................................................................................................... Objectives ..................................................................................................... Heredity and Genetics – Their Meanings ........................................................... Early Ideas of Inheritance ................................................................................. Mendel’s Laws of Heredity ................................................................................. The Role of Meiosis in Reproduction .................................................................. Laws of Chance or Probability ........................................................................... Punnett Squares ............................................................................................... Test Crosses ..................................................................................................... Monohybrid and Dihybrid Crosses .................................................................... Codominance and Incomplete Dominance ......................................................... Human Traits Following Mendelian Principles ................................................... Plant and Animal Breeding Techniques ............................................................. Cloning ..................................................................................................... Genetic Engineering and Recombinant DNA ...................................................... Tools used to aid DNA Technology..................................................................... How and Why Gel Electrophoresis works .......................................................... Heredity and Environment ................................................................................ Summary ..................................................................................................... 108 109 110 111 111 112 119 119 122 123 125 131 133 137 141 145 146 147 151 152 Assignment 12 .................................................................................................. 161 Biology 30 iv Module 3 Lesson 13 – Chromosomes and Genes Vocabulary ..................................................................................................... Introduction ..................................................................................................... Objectives ..................................................................................................... The Chromosome Theory .................................................................................. Linkage and Crossing Over ............................................................................... Karyotype Activity ............................................................................................. Chromosomes, Genes and DNA......................................................................... Multiple Alleles ................................................................................................. The Importance of Blood Typing ........................................................................ Multiple Genes or Polygenes ............................................................................. Mutations ..................................................................................................... Gene Pools ..................................................................................................... Sex Determination ............................................................................................ Sex-Linked and Sex Influenced Traits ............................................................... Some Genetic Conditions – Disorders in Humans.............................................. Genetic Checks and Genetic Counselling .......................................................... Summary ..................................................................................................... 182 183 184 185 185 191 195 197 200 201 202 209 210 212 216 219 220 Assignment 13 .................................................................................................. 231 Biology 30 v Module 3