Student Exploration: Mouse Genetics (Two Traits) Directions: Follow the instructions to go through the simulation. Respond to the questions and prompts in the orange boxes. Vocabulary​:​ allele, genotype, phenotype, probability, Punnett square [Note to teachers and students: This Gizmo was designed as a follow-up to the Mouse Genetics (One Trait) Gizmo. We recommend doing that activity before trying this one.] 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? Highlight your answer 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. Reproduction for educational use only. Public sharing or posting prohibited. © 2020 ExploreLearning™ All rights reserved Name: Justin Sharp Date: A. Four Heads D. One head three tails B. Three heads, one tail E. Four tails C. Two heads, two tails F. All are equally likely The Odds of getting Four Tails in a row are pretty low, so getting the first flip being a 50 Percent chance, 2nd flip being 25 Percent, 3rd Flip, 12.5 Percent, and the 4th Flip being 6.25 Percent. The Answer’s 6.25 Percent. 1. What must be true to have offspring with black fur? For either both or one of the Mice have black fur. 2. What must be true to have offspring with white fur? For both of the Mice to have White Fur. 3. What must be true to have offspring with black eyes? For either both or one of the Mice to have Black Eyes. 4. What must be true to have offspring with red eyes? For both of the Mice to have RedQuestion: 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 ​Breed ​several 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. 2. Analyze​: The ​probability​ ​of an event is the likelihood that it will happen. Probability can be expressed as a percentage, such as 75%, as a decimal (0.75), or as a fraction (3/4). 3. Predict​: Click ​Clear​, and move the two mice from the ​Holding Cages​ into the parent box. 4. Experiment​: Click ​Breed​, and record the genotypes of the offspring on a s - - - - - - Conttnued