OOMPAH LOOMPA GENETICS
TRAITS in Oompah Loompa Inheritance:
Possible Phenotypes
TRAIT / DOMINANT / RECESSIVEFACE COLOR / Blue / orange
FACE SHAPE / square / round
HAIR COLOR / Green / purple
Possible Genotypes (fill in the table)
PHENOTYPE / GENOTYPE / PHENOTYPE / GENOTYPEBlue face / Orange face
Square face / Round face
Green hair / Purple hair
Now do these crosses…
Write down the cross showing the parents’ genotypes (_____ X _____).
Show your Punnett Square.
1. Two heterozygous oompahs are crossed. What proportion of the offspring will have orange faces?
2. A blue faced oompah (homozygous) is married to an orange faced oompah. They have 8 children. How many children probably have blue faces?
3. Otis Oompah has an orange face and is married to Ona Oompah who has a blue face. They have 60 children. Thirty one of the children have orange faces. What are the genotypes of the parents.
4. Odie Oompah has a square face. In fact, everyone in Odie’s family has a square face, and the family boasts that it is a “pure” line. Much to his family’s horror, he married Ondi Oompah who (“gasp”) has a round face! Ondi is pregnant. What is the likelihood that Odie and Ondi will have children with square faces?
5. Odie and Ondi’s child has a round face. Was Odie “pure” for square face?
Explain.
6. Odie and Ondi get divorced.
A. Odie marries Osha (who thankfully has a square face!). They have a child with a round face. Explain how this could have happened.
B. Ondi marries Otto (who has a round face like Ondi). What is the probability that their children will have round faces?
7. In Oompah Loompa land, most oompa loompas have round faces. Explain.
8. Olivia Oompah had triplets. Olivia has purple hair. Two of her triplets have purple hair, the other has green hair. There are two possible fathers: Oscar and Odo. Both male oompah loompas have green hair. Oscar is homozygous for green hair. Odo is heterozygous. Which Oompah Loompa is the father? Defend your answer.