practice with punnett's: (don't worry about the dihybrid crosses!!)
http://biology.clc.uc.edu/courses/bio105/geneprob.htm
karyotype:
http://www.biology.arizona.edu/human_bio/activities/karyotyping/karyotyping.html
Interactive pedigree:
http://highered.mcgraw-hill.com/sites/0072485949/student_view0/chapter3/interactive_activity.html
blood type
http://www.biology.arizona.edu/human_bio/problem_sets/blood_types/genotypes.html
X-linked traits
http://www.biology.arizona.edu/mendelian_genetics/problem_sets/sex_linked_inheritance/sex_linked_inheritance.html