🐶 Mutt Mixer Genetics Worksheet
Name: ___________________________
Date: _______________
Objective:
Explore how the combination of alleles from two parent dogs can result in a variety of
offspring traits, illustrating the principles of inheritance and genetic variation.
Part 1: Exploring the Mutt Mixer Simulator
1. Access the Simulator:
- Navigate to the Mutt Mixer simulator at
https://learn.genetics.utah.edu/content/change/muttmixer/
2. Create Parent Dogs:
- Design two parent dogs with distinct traits. Record their characteristics below:
Trait
Parent 1
Parent 2
Coat Color
White Spotting
Ear Type
Tail Type
Fur Texture
Size
3. Generate Offspring:
- Click on "Make Puppies" to produce offspring from your parent dogs.
- Observe the variety in the puppies' traits.
4. Record Observations:
- How many puppies were generated? __________
- Describe the range of traits observed in the offspring:
- Coat Color Variations: ___________________________
- White Spotting Patterns: _________________________
- Ear Types: ______________________________________
- Tail Types: _____________________________________
- Fur Textures: ___________________________________
- Sizes: __________________________________________
Part 2: Understanding Inheritance Patterns
1. Trait Analysis:
- Choose one trait (e.g., Ear Type) and determine the possible genotypes and phenotypes
based on the simulator's information.
Genotype
Phenotype
2. Punnett Square Practice:
- Using the chosen trait, create a Punnett square for a cross between a heterozygous
parent and a homozygous recessive parent.
- Parent Genotypes: __________ x __________
Punnett Square:
A
a
A
a
- Genotypic Ratio: ________________________
- Phenotypic Ratio: ________________________
Part 3: Reflection Questions
1. How does the combination of alleles from two parents contribute to the diversity
observed in the offspring?
2. Why are single-gene traits more prominently observed in domesticated dogs compared to
wild species?
3. How can studying inheritance patterns in dogs help us understand genetic diseases in
humans?
Extension Activity (Optional):
Achievement Challenge:
- The Mutt Mixer simulator includes various achievements. Try to unlock at least three
different achievements and describe how you accomplished each.
1. Achievement: ____________________ – How achieved: ___________________________
2. Achievement: ____________________ – How achieved: ___________________________
3. Achievement: ____________________ – How achieved: ___________________________