1408 Ch 10 Outline

1408 Ch 10 Outline - 10 OBSERVINGPATTERNS ININHERITEDTRAITS...

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10 OBSERVING PATTERNS  IN INHERITED TRAITS Chapter Outline IMPACTS, ISSUES: IN PURSUIT OF A  BETTER ROSE 10.1 MENDEL, PEA PLANTS, AND INSIGHT  INTO INHERITANCE PATTERNS  Mendel’s Experimental Approach  Terms Used in Modern Genetics  10.2 MENDEL'S THEORY OF SEGREGATION  Testcrosses  10.3 MENDEL'S THEORY OF INDEPENDENT  ASSORTMENT 10.4 BEYOND SIMPLE DOMINANCE Codominance in ABO Blood Types Incomplete Dominance Epistasis Single Genes with a Wide Reach 10.5 LINKAGE GROUPS 10.6 GENES AND THE ENVIRONMENT 10.7 COMPLEX VARIATIONS IN TRAITS Continuous Variation in Populations Regarding the Unexpected Phenotype SUMMARY SELF-QUIZ GENETICS PROBLEMS Objectives 1. Know Mendel’s principles of dominance, segregation, and independent assortment. 2. Understand how to solve genetics problems that involve monohybrid and dihybrid crosses. 3. Understand the variations that can occur in observable patterns of inheritance. Key Terms ABO blood typing alleles bell curves camptodactyly codominance continuous variation dihybrid experiments diploid dominant allele gene expression genes genotype heterozygous heterozygous dominant homozygous homozygous dominant homozygous recessive hybrids incomplete dominance linked genes Marfan syndrome monohybrid experiments multiple allele system mutation phenotype pleiotropy polygenic inheritance probability Punnett-square method recessive allele testcross theory of segregation Observing Patterns in Inherited Traits 86
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theory of independent  assortment Observing Patterns in Inherited Traits 87
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Lecture Outline Impacts, Issues: In Pursuit of a Better Rose A. Artificial selection has been used to breed plants for thousands of years. 1. Ancestral rose stock had two sets of seven chromosomes. 2. Today through artificial breeding, roses have two to eight sets of chromosomes, to  enhance hardiness, fragrance, petal count, and other features. 3. These cultivated varieties are more susceptible to disease. B. New research programs mapping the rose chromosomes are being used to genetically  engineer a better rose. 10.1 Mendel, Pea Plants, and Inheritance Patterns  A. Introduction 1. By the late nineteenth century, natural selection suggested that a population could evolve  if members show variation in heritable traits. Variations that improved survival chances  would be more common in each generation—in time, the population would change or  evolve. 2.
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This note was uploaded on 03/07/2011 for the course BIOL 1408 taught by Professor Mason during the Fall '08 term at Dallas Colleges.

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1408 Ch 10 Outline - 10 OBSERVINGPATTERNS ININHERITEDTRAITS...

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