Biology 111: Lecture 13Fall 1998

Genetics: A Man and His Peas

  1. Terms
    1. Gene vs. allele
    2. Genotype vs. phenotype
    3. Homozygous vs. heterozygous

  2. Mendelian mathematics
    1. Rule of multiplication
    2. Rule of addition

  3. Gregory Mendel
    1. Peas
      1. Seven traits
      2. Cross/hybridization
        1. P generation
        2. F1 generation
        3. F2 generation
    2. Hypotheses
      1. Law of dominance
      2. Law of segregation
      3. Law of independent assortment

  4. Single-factor cross
    1. Steps
      1. Assign a symbol for each allele
      2. Determine the genotype of each parent and indicate a mating
      3. Determine all the possible kinds of gametes each parent can produce
      4. Determine all the gene combinations that can result when these gametes unite
      5. Determine the phenotype of each possible gene combination
    2. Example


"Yes, I know your name
Every prayer you pray
I'm the one who brought you to this place
The voice who sings to you
The hand that clings to you
Oh my child, I've always known your name." 		Michael W. Smith, I Know Your Name