Introduction

This chapter explores the groundbreaking experiment conducted by Frederick Griffith, where he discovered the lethal combination of disease and harmless strains of Streptococcus pneumoniae, challenging previous understandings.

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Cross-examining the origins of our base pairs

One of our most foundational assumptions is that ‘Our DNA is our own.’ But what if our DNA is stolen? There's a puzzling phenomenon called 'horizontal gene transfer' in which one organisms' genetics jumps to another. Dr. Kaylee Byers is joined by invertebrate specialists Dr. Anna Klompen from the Stowers Institute, and Dr. Jessica Goodheart, a marine biologist hunting for nudibranchs, "gene pirates" of the sea. And Dr. Ted Turlings will tell us how his trip to China led to an exciting discovery about the whitefly -- another common but crafty genetic thief. A final word of advice. Next time a goopy organism bumps into you in a crowd, make sure to check your genes!

A special thanks to the laboratory of Professor Youjun Zhang Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences in Beijing. Drs. Zhaojiang Guo, Jixing Xia, and Zezhong Yang.

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Highlights:

(00:00) Finding the Transforming Principle

(11:34) A colorful and slick ocean pirate

(17:50) The hunt for a fluttering and destructive gene thief

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Learn-A-Long: https://bit.ly/49qSB4T

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Resources:

Frederick Griffith - British Bacteriologist | Britannica

Griffith’s Experiment - Progress in Molecular Biology and Transitional Science | Science Direct

20 Cool Genomics Facts - 13&14: Antibiotic resistance | Genome BC