|
Post by j7oyun55rruk on Dec 26, 2023 14:46:45 GMT 5.5
No one had edited the aga toad genome before, so Cooper hadn't figured out how to do it yet. It turned out that the toad eggs had to be cleaned and then pierced with a very thin straw, and it had to be before the cells started dividing. I've been practicing microinjection for a while, tell me. First, she decided to change the color of the toad. The key gene for skin pigmentation in toads (and humans, by the way) encodes the enzyme tyrosinase, which controls the production of melanin. The reasoning was that if this gene were switched off. The result would be light-colored toads, not dark-colored toads. She mixes several C Level Contact List eggs and sperm in a Petri dish and places The relevant substances are injected into the resulting embryos, and then wait. Three unusually brightly colored tadpoles emerged. One of them died. The other two, both males, had grown into spotted toads. They are named and. I'm so excited when it happens, tell me. the toad's toxicity. The toxin in toads (bufatoxin) is produced in the large parotid gland near the back, as well as smaller glands scattered throughout the body. 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. The result was a batch of non-toxic toads. After the conversation, Cooper offered to see the toad for himself. To do this, we go deep.
|
|