Uploaded January 2026 | Updated September 2026, 2 weeks ago
🎨 Non-Mendelian Genetics: Beyond Mendel's Pea Plants
If genetics is as simple as Punnett squares, why is red-green color blindness so much more common in men? Why do some flowers turn out pink when their parents are red and white? In this video, we dive into AP Biology Topic 5.4, exploring the complex inheritance patterns that go beyond Mendel's simple dominant and recessive rules.
We continue the story of our high school biology student to explain sex-linked traits, but we don’t stop there. We’ll break down codominance in blood types, incomplete dominance in snapdragons, and the "rule-breaking" nature of genetic linkage. We also explore how your mitochondria provide a unique genetic link to your mother through non-nuclear inheritance.
Perfect for AP Bio students looking to master the "exceptions" to the rules that actually make up most of human genetics!
🎯 Learning Objectives:
Explain deviations from Mendel's model of the inheritance of traits.
🧬 The Complexity of Inheritance:
1. Sex-Linked Traits - The genes for red-green color vision are on the X-chromosome.
2. Incomplete Dominance vs. Codominance - Inheritance isn't always "on or off."
3. Genetic Linkage & Mapping - Sometimes genes are on the same chromosome
4. Non-Nuclear Inheritance - Some genes are found in mitochondrial or chloroplast DNA.
🔔 Like, subscribe, and comment below: How does non-Mendelian genetics help explain the traits people inherit? mrpauller.weebly.com/54-non-mendelian-genetics.html
🙏 Support the Lab Hamster storylines! Join our community on Patreon to help us keep creating science resources: patreon.com/c/LabHamster
Special thanks to our 🦀Decapoda level members whose support made this video possible.
Jennifer Hamilton, Chandra Mitnik, Emily Higgins, Chantal Bodkin-Clarke, Susan Duffy, Joanna Sivley, Lisa England, Allen Frisa, Josh Anoff, Christi Deutch, Bonnie Woolfenden, Tina Svencer, Jodi Hall, Cori Stegall, Stephanie Schweppe, Tom Michocki, Laura Christiansen, Kristin Clements, Jennifer B., Jamie Brongiel, Andrea Pokrzywinski, Tim McEachern, Cynthia Trevino, Gisela Wolfe, Kelly Struckhoff, Sandra Fischer, Julia Harvey, Michelle Wagner, Noah Johnson, Pam Rittle, Lana Cummings, Sonja Gasper
AI Disclosure: AI was used to create some of the imagery in our videos. We are learning as we go about the best ways to make use of this developing technology. AI was used to create video clips featuring the high school student in this video, it was not used to generate images or video demonstrating scientific concepts.
🎨 Non-Mendelian Genetics: Beyond Mendel's Pea Plants
If genetics is as simple as Punnett squares, why is red-green color blindness so much more common in men? Why do some flowers turn out pink when their parents are red and white? In this video, we dive into AP Biology Topic 5.4, exploring the complex inheritance patterns that go beyond Mendel's simple dominant and recessive rules.
We continue the story of our high school biology student to explain sex-linked traits, but we don’t stop there. We’ll break down codominance in blood types, incomplete dominance in snapdragons, and the "rule-breaking" nature of genetic linkage. We also explore how your mitochondria provide a unique genetic link to your mother through non-nuclear inheritance.
Perfect for AP Bio students looking to master the "exceptions" to the rules that actually make up most of human genetics!
🎯 Learning Objectives:
Explain deviations from Mendel's model of the inheritance of traits.
🧬 The Complexity of Inheritance:
1. Sex-Linked Traits - The genes for red-green color vision are on the X-chromosome.
2. Incomplete Dominance vs. Codominance - Inheritance isn't always "on or off."
3. Genetic Linkage & Mapping - Sometimes genes are on the same chromosome
4. Non-Nuclear Inheritance - Some genes are found in mitochondrial or chloroplast DNA.
🔔 Like, subscribe, and comment below: How does non-Mendelian genetics help explain the traits people inherit? mrpauller.weebly.com/54-non-mendelian-genetics.html
🙏 Support the Lab Hamster storylines! Join our community on Patreon to help us keep creating science resources: patreon.com/c/LabHamster
Special thanks to our 🦀Decapoda level members whose support made this video possible.
Jennifer Hamilton, Chandra Mitnik, Emily Higgins, Chantal Bodkin-Clarke, Susan Duffy, Joanna Sivley, Lisa England, Allen Frisa, Josh Anoff, Christi Deutch, Bonnie Woolfenden, Tina Svencer, Jodi Hall, Cori Stegall, Stephanie Schweppe, Tom Michocki, Laura Christiansen, Kristin Clements, Jennifer B., Jamie Brongiel, Andrea Pokrzywinski, Tim McEachern, Cynthia Trevino, Gisela Wolfe, Kelly Struckhoff, Sandra Fischer, Julia Harvey, Michelle Wagner, Noah Johnson, Pam Rittle, Lana Cummings, Sonja Gasper
AI Disclosure: AI was used to create some of the imagery in our videos. We are learning as we go about the best ways to make use of this developing technology. AI was used to create video clips featuring the high school student in this video, it was not used to generate images or video demonstrating scientific concepts.
