Student Exploration, Mouse Genetics, Gizmos Student Exploration Sheet (One Trait)

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Student Exploration: Mouse Genetics (One Trait) Vocabulary: allele, DNA, dominant allele, gene, genotype, heredity, heterozygous, homozygous, hybrid, inheritance, phenotype, Punnett square, recessiv... e allele, trait Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. The image shows a single litter of kittens. How are they similar to one another? They all have a little of white and are kittens. 2. How do they differ from one another? Some have orange, brown, or black. 3. What do you think their parents looked like? I’m guessing orange and white or black and white. Gizmo Warm-up Heredity is the passage of genetic information from parents to offspring. The rules of inheritance were discovered in the 19th century by Gregor Mendel. With the Mouse Genetics (One Trait) Gizmo™, you will study how one trait, or feature, is inherited. 1. Drag two black mice into the Parent 1 and Parent 2 boxes. Click Breed several times. What do the offspring look like? The mice are black. The appearance of each mouse is also called its phenotype. 2. Click Clear, and drag two white mice into the parent boxes. Click Breed several times. What is the phenotype of the offspring now? The mice are white. 3. Do you think mouse offspring will always look like their parents? Yes, they are mice. [Show More]

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