1. Pedigree Charts Draw a chart showing your family. (parents and children)

2. Used to show how a trait is passed from one generation to the next = Does not express the trait (unaffected) = Expresses the trait (affected) = Carrier of the trait (unaffected, carrier) = Male= Female

3. B = Normal (dominant) b = Extra-Long pointer finger (recessive) What are the genotypes of the following? If it is an X-Linked trait, what are they?

4. SymbolDescription Unaffected male Unaffected female Affected male Affected female Deceased male Deceased female Possibly affected male (unknown) Possibly affected female (unknown) Carrier male Carrier female Carrier female with an X- linked disorder COPY THIS TABLE into your NOTES

5. Connected Symbols: SiblingsTwins Married CoupleDivorced Couple

6. Which ones are actually carriers? 1.Re-draw this pedigree chart WITH the CARRIERS shaded in 1/2 way

7. Royal Hemophilia - Started by a mutant allele in Queen Victoria of England. - Three of her nine children received the defective allele. - They transferred it by marriage to other royal families. Queen Victoria

8. Fig. 8.28

9. Pedigree charts support or refute predictions. YOUR TASK: 1.Prepare a Punnett Square and state the probability of offspring phenotypes for each child based on the pedigree below. 2. Compare (in a sentence!) the actual phenotypes with the predictions.

10. Pedigree Story In your group, write a story that can be illustrated with a pedigree. (~10 minutes) DRAW the pedigree first! (to be used as a key) Include: 3 generations, 5 relations, names! Trade with another group and draw a pedigree based on their story.

11. Example: Johnny has three sisters. One sister (April) is from the same mother, Joan. Joan’s father, Bill, was a brick layer, which is how he met Jenny, his wife.

12. Can you be your own grandfather? The Ultimate Pedigree Challenge!!!!!!!!!!!!!!! - Listen to the song (I’m My Own Grandpa) - Write out a pedigree chart for the family Lyrics: http://www.youtube.com/watch?v=7AvG6q_iTcA http://www.youtube.com/watch?v=7AvG6q_iTcA Muppets version: http://www.youtube.com/watch?v=q0s5Kn9QXtU http://www.youtube.com/watch?v=q0s5Kn9QXtU