10.2 Inheritance

10.2 Inheritance

1. NATURE OF SCIENCE

   • Looking for pattern, trends and discrepancies
     • Mendel used observations of the natural world
       • Exceptions to the rules
         • Morgan discovered non-Mendelian ratios with Drosophila

2. VARIATION

   • Discrete
   • Continuous
     • The phenotypes of polygenic characteristics
       • Height may also be influenced by environmental factors
   • Selective breeding with livestock for specific characteristics
   • Aim 8
     • Ethical issues arise in the prevention of the inheritance of genetic disorders

3. DIHYBRID CROSSES

   • CHI-SQUARED
     • Observed and expected frequency frequency distribution is statistically significant
   • Aim 4
     • Solve genetic crosses
       • Punnett squares
         • Linked genes
           • Gene loci are said to be linked if on the same chromosome
             • Identification of recombinants
           • TOK
             • The law of independent assortment has exception
               • What is the difference between a law and a theory in science?
         • Unlinked genes
           • Unlinked genes segregate independently as a result of meiosis