The result was a batch of non-toxic

Joyuseoto57

It is quarantined in its normal state and only makes mammals sick. If the toad feels threatened, it produces a special enzyme, bufotoxin hydrolase, which intensifies the poison's effect a hundredfold. Using the technology, the second batch of embryos were edited to remove part of the gene encoding bufotoxin hydrolase.  toads. After the conversation, Cooper offered to see the toad for himself. To do this, we go deep, through several sealed doors and security levels.

We all wear hazmat suits over our clothes and shoe covers over our shoes. Cooper sprayed my tape moible number data recorder with some kind of disinfectant. The sign on the door read: Quarantine. Violators face fines. I decided it was better not to tell my own gene editing adventures, it was far from safe. Behind the door is like a barren zoo filled with animals of all sizes. It smells of both a hospital and a petting zoo. Nontoxic toads hopped around in several cages around the plastic tank.



There were about a dozen of them, about ten weeks old, each centimeter long. Look how active they are, Cooper said. The tank contained everything humans thought a toad might need: artificial plants, a basin of water, a lamp. I'm reminded of Mr. Toad's house in Kenneth Graham's fairy tale The Wind in the Willows, full of every modern convenience. One of the toads sticks out its tongue and grabs a cricket.