Genetic engineering, difficult yet simple,
In modern Earth's education, high school students already encounter some knowledge related to it. Simply put, it involves constructing hybrid DNA molecules outside the body, then introducing them into living cells to alter the organisms' original genetic traits, obtaining new breeds, new products.
The steps required are only four—just one more step than putting an elephant in a refrigerator:
First, extract the target gene;
Second, combine the target gene with a carrier;
Third, introduce the target gene into the recipient cells;
Fourth, detect and express the target gene.
But while it's simple in theory, practically it's quite challenging, technically speaking.
