Uploaded February 2025 | Updated September 2026, 5 hours ago

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In this video we look at monogenic inheritance. I show you how to carry out a genetic cross, looking at one gene with two alleles - dominant and recessive. We cross true-breeding pea plants with green pea pods and true-breeding pea plants with yellow pea pods to produce the F1 generation. We then cross the F1 generation to produce the F2 generation. Finally, we look at Mendel's law of segregation.

Image credits:

Gregor Mendel
commons.wikimedia.org/wiki/File:Gregor_Mendel_2.jpg
http://0.tqn.com/d/biology/1/0/l/e/3244238.jpg, Public domain, via Wikimedia Commons

Pea plant
commons.wikimedia.org/wiki/File:Pisum_sativum_(fruit)_6.jpg
Андрей Перцев, CC0, via Wikimedia Commons

Mendel pea traits
commons.wikimedia.org/wiki/File:Mendel_pea_traits.svg
Nefronus, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons