• Section 1 - Coin Toss Experiment

  Simulate inheritance of alleles: use heads for dominant (H=right-handed), tails for recessive (h=left-handed).

  Use 1 coin as egg, the other as sperm - make 100 zygotes.

  Calculate genotype and phenotype ratios of this monohybrid cross between heterozygotes.

• Section 1 - Genetic Survey

  Fill in your phenotype and genotype for 7 traits such as ear lobes; see Table 14.3-1 p. 404 and Table 14.3-4 p. 408.
  Note:

  • Hair texture exhibits incomplete dominance: heterozygote is wavy.
  • Blood type exhibits codominance: I^A and I^B are codominant over I^O.
    Note: In the textbook, I^O is designated as i.

• Section 2 - Blood Type Demonstration p. 405

  SKIP

• Section 3 - Sex Linkage Demonstration p. 406

  SKIP

Table 14.3-4 Human genetic traits for the simulation game p. 408

• Section 1 - Procedure p. 409

  Work in pairs - obtain bag indicating genotypes for 12 traits, use table on p. 408.
  Note: Hb^T should be Hb^t - the recessive allele for thalassemia; the normal Hb^T allele is usually shown simply as Hb.

  Each parent randomly produces gametes (top side of disc) with the 12 alleles, mate.

  Beget 4 children, determine genotypes and phenotypes.

  Optional: Mate Choice Game

  Section 2 - Questions (p. 421)

  • Skip #9 on chi-square test.

Section 1 - Learning about Pedigrees
Figure 14.3-4 Pedigree symbols

Section 2 - Questions p. 411
Figure 14.3-5 Pedigree for albinism (use this figure for questions on p. 426; assume alleles are called A for normal, a for albino.)