CHARACTERISTIC (trait)

Characteristics

Compare your smiley face with two other students in the class! WRITE the trait that each smiley face has for each of the twelve characteristics. CHARACTERISTIC characteristics were the results of incomplete dominance (codominance)? (How many faces did you compare? What are the possible percentage when you compare this many items )? (How many faces did you compare? What are the possible percentage when you compare this many items )?

Wrapping It Up as a Class NAME: DATE: PERIOD: Genetics with a Smile Wrapping It Up as a Class Compare your Smiley Face phenotypes with the rest of your class After we tally the number of smiley faces that have each trait, write the totals calculate the dominant : recessive trait ratio (or first : second : third trait ratio for nose color and ear color). Characteristic dominant trait # faces recessive trait trait ratio (dominant : recessive) Face shape Eye shape Hair style Smile Ear style Nose style Face color Eye color Hair length Freckles trait 1 #faces trait 2 trait 3 trait ratio (trait1:trait2:trait3) Nose color Ear color 5

Wrapping It Up as a Class NAME: DATE: PERIOD: Genetics with a Smile Wrapping It Up as a Class Make a punnett square for the characteristic face shape, using the male and female parents’ genotypes from Genetics with a Smile. Fill in the possible genotypes for the offspring What is the expected trait ratio (dominant:recessive)? What is the expected trait ratio for the other completely dominant characteristics Discuss how our class’s trait ratios compare to our expected ratio! Make a punnett square for the characteristic nose color, using the male and female parents’ genotypes from Genetics with a Smile. What is the expected trait ratio (trait 1:trait 2:trait 3)? What is the expected trait ratio for ear color? 6