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BLAST basic local alignment search tool Gb gigabase pair Kb kilobase pair Mya million years ago padj adjusted p value PI3K phosphatidylinositol 3-kinase Rac Rac family small GTPases 1 Background Snakes represent a group of vertebrates with a high degree of morphological specialization (Zhao and Wang 2025). Current research indicates that snakes are widely distributed across all continents except for extreme polar environments (Jackson 2014).
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