Is it a mammoth or an elephant that looks like a mammoth: "To produce the calves, Colossal scientists will first identify the genes encoding the woolly mammoth

Is it a mammoth or an elephant that looks like a mammoth: "To produce the calves, Colossal scientists will first identify the genes encoding the woolly mammoth's most emblematic physical traits, such as shaggy hair, curved tusks, fat deposits and a dome-shaped cranium. They will then insert these genes into the genome of closely related, and therefore genetically similar, Asian elephants (Elephas maximus)." They're not actually taking a full mammoth set of DNA and inserting that into an elephant egg to grow into a mammoth, which they'd done with earlier animals referenced in the article. Also - how do they know the mother can actually handle it? Seems pretty cruel to make the mother carry an edited child that she might not be capable of handling.