A small-scale nuclear fusion reaction occurred in the southern bay. About three days later, a large planarian corpse appeared on the beach. After preliminary inspection, researchers found that the result was a mutation reaction caused by radiation, which has certain research value. Then strong acidic substances were detected in subsequent blood components, the content of HOX genes (homeotic genes) was high, and there was another substance that could not be captured. The researchers genetically fused the extracted blood samples with different types of animals. To ensure long-term research, the hair and body tissues of the species were soaked in formalin for later needs. During the cutting process, it was unexpectedly discovered that the organism has a strong recovery ability, which is tentatively called a repair gene (RE gene). Since then, research on "renewable" has been carried out. The experiment progressed steadily. When there was a slight progress, some immeasurable changes occurred, and the military sent troops to clear and destroy them. Due to various reasons, the proliferation of semi-finished research results has brought a huge disaster to mankind.
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