Student Exploration: Mouse Genetics (Two Traits) Vocabulary: allele, genotype, phenotype, probability, Punnett square
Prior Knowledge Questions (Do these BEFORE using the Gizmo )
1. A single coin is flipped four times. What do you think is the most likely outcome?
2. What do you think are the odds of getting four tails in a row? Explain your answer
Gizmo Warm-up On the Mouse Genetics (Two Traits) Gizmo, drag mice into the Parent
1 and Parent 2 spaces, and then click Breed to see their offspring. Experiment with
different combinations of parent mice.
1. What must be true to have offspring with black fur?
2.What must be true to have offspring with white fur?
3. What must be true to have offspring with black eyes?
4.What must be true to have offspring with red eyes? What must be true to have
offspring with red eyes and white fur?
Question: What patterns appear when two traits are inherited?
1. Observe: Breed a black-fur, black-eye mouse with a white-fur, red-eye mouse.
Click Breedseveral times, and then drag two of the offspring into the Holding
Cages below. Move the cursor over a mouse to see its genotype, or allele combination
What is the genotype of the black-fur parent?