Oompa Loompa Genetics

Name: ______Date: ______Instructor: ______Period: ______Oompa Loompa Genetics

Mendelian Genetics and Codominance

1. BB = Blue Face SHOW ALL WORK and PUNNET SQUARES Bb = Blue Face bb = Orange Face 1. Oompas generally have blue faces, which is caused by a dominant gene. The recessive condition results in an orange 2. ¼ or 25% face. Develop a "key" to show the genotypes and phenotypes B b possible for Oompa Loompas. B BB Bb 2. Two heterozygous Oompas are crossed. What proportion of the offspring will have orange faces? b Bb bb

3. A blue-faced Oompa (homozygous) is married to an orange- 3. All 8 (All will be hybrid) faced Oompa. They have 8 children. How many children will have blue faces? 4. We know Otis must be bb to have an orange face. Ona must be 4. Otis Oompa has an orange face and is married to Ona Bb to be able to have children with Oompa who has a blue face. They have 60 children, 31 of orange faces. them have orange faces. What are the genotypes of the B b parents? b Bb bb 5. Odie Oompa has a blue face. In fact, everyone in Odie's family has a blue face, and the family boasts that it is a b Bb bb "pure" line. Much to his family's horror, he married Ondi Oompa who "gasp" has an orange face. What are the 5. All of Odie and Ondi’s children genotypes of their children? Is Odie's line still "pure"? will be blue faced with genotype Bb. The line is no longer pure because 6. Ona Oompa (from#4) divorces Otis and marries Otto. Otto they are hybrids (heterozygous) not homozygous dominant. has an orange face. What is the probability that Ona and Otto's children will have orange faces? 6. 100% because they both have the genotype bb. 7. Oompas can have red, blue or purple hair. Purple hair results from the heterozygous condition. Make a "key" 7. RR = Red Hair showing the genotypes and phenotypes for hair color. Is this BB = Blue Hair RB = Purple Hair an example of codominance or incomplete dominance? 8. About 50% of Opal’s children will have blue hair. R B B RB BB

B RB BB

9. Orville could be the father of a red haired but he could not have had 8. Orville Oompa has purple hair and is married to Opal a red haired child with Opal. The Oompa who brags that she has the bluest hair in the valley. Punnett Square above shows that How many of Opal's children will be able to brag about their Orville and Opal can only have blue haired and purple haired children. blue hair also? The most plausible explanation is a mix up at the hospital. 9. One of Opal's children is born with shocking red hair. Is Orville the father of this child (show the square to prove 10. All of their children would have your answer)? But wait, Opal swears she has been faithful purple hair. and claims that the hospital goofed and got her baby mixed 11. ¼ would have blue hair, ½ with another. Is this a plausible explanation? Show the square would have purple hair, and ¼ to prove your answer. would have red hair. B R 10. Olga Oompa has red hair and marries Oliver Oompa who has blue hair. They have 32 children. What color is their B BB BR children's hair? R BR RR 11. Olivia Oompa is married to Odo Oompa and they both have purple hair. What color hair and in what proportion would you 12. His best chance would be to expect their children to have? find a wife with blue hair. This would give him a 50% chance of 12. In the land of Oompa, blue hair is highly valued, blue having blue haired children. 9See haired Oompas even get special benefits. Oscar Oompa has Punnett square below) His second purple hair but he wants to find a wife that will give him blue choice would be another purple haired children. What color hair should his wife have? What haired Oompa Loompa. This would give hime a 25% chance. (See the would be his second choice? Punnett Square above in 11) B R B BB BR

B BB BR