- - AGRICULTURE CORE CURRICULUM - - (CLF200) Core Area: ANIMAL SCIENCE (CLF250) Unit Title: GENETICS AND BREEDING UNIT DIRECTORY: __________________________________________________________________________ code topic title hours years __________________________________________________________________________ (CLF251) Fertilization 3 1/2 (CLF252) Inheritance 3 2 (CLF253) Geno- and Phenotype 2.5 2 (CLF254) Dominant and Recessive Genes 3 2 (CLF255) Mutation 1 2 (CLF256) Genetics Glossary 0 1/2 TOTAL TIME FOR UNIT= 12.5 hours ___________________________________________________________________________ UNIT GOAL: Students will develop a basic understanding of the theory of inheritance and the genetic basis for animal selection. UNIT OBJECTIVES: Upon completion of this unit, the students will be able to: 1. Review the steps of mitosis and meiosis. 2. Describe the process of fertilization in mammals. 3. Discuss the transmission of genes through meiotic division to form sperm and ova. 4. Describe the role of nucleic acids, DNA, and RNA in inheritance. 5. Define the terms phenotype, genotype, haploid, diploid, homozygous, heterozygous, segregation, and homologous and use them correctly in discussing gametogenesis and the genetic makeup of an animal. 6. Demonstrate probability by charting the possible results of a mating involving a dominant/recessive gene pair. 7. Define mutation and describe two effects that mutation has had on commercial animal agriculture. ____________________________________________________________________________ REFERENCES Bogart, Ralph and Robert Taylor, SCIENTIFIC FARM ANIMAL PRODUCTION, Burgess Publishing Co., 2nd edition. Curtis, Helena, BIOLOGY, Worth Publishers, Inc., 4th edition. Hafez, E.S.E., REPRODUCTION IN FARM ANIMALS, Lea and Febiger, 4th edition. EVOLUTION, Time Life Nature Library, Time Life Books, Chapters 3 and 4. California Agricultural Core Curriculum: CLF222, "Conception/Gestation" and CLF243, "Reproductive Systems." ____________________________________________________________________________ RESOURCES Carolina Biological Supply Company, 2700 York Rd, Burlington, North Carolina 27215. / Box 187 Galdstone, Oregon 97027. West Coast 1-800-547-1733; Other areas 1-800-334-5551. Vocational Educational Productions (VEP), Cal Poly State University, San Luis Obispo, California. 805-756-2295 Intructional Materials Service (IMS), Texas A & M, College Station, Texas.77843-2116 Nasco West, 1524 Princeton Ave., Modesto Calif. 95353 209-529-6957 Nasco, 901 Janesville, Wisconsin 53538 414-563-2446. 9/26/88 gfv