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chỉnh sửa gen để làm sống lại chuột tuyệt chủng...
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Ever since the movie Jurassic Park, the idea of bringing extinct (tuyệt chủng) animals back to life has captured the public's imagination -- but what might scientists turn their attention towards first?


Instead of focusing on iconic species like the woolly mammoth (voi ma-mút) or the Tasmanian tiger (hổ), a team of paleogeneticists have studied how, using gene editing (chỉnh sửa gen), they could resurrect the humble Christmas Island rat, which died out around 120 years ago.

...There are three pathways to bringing back extinct animals: back-breeding related species to achieve lost traits; cloning, which was used to create Dolly the sheep in 1996; and finally genetic editing, which Gilbert and colleagues looked at.

The idea is to take surviving DNA of an extinct species, and compare it to the genome of a closely-related modern species, then use techniques like CRISPR to edit the modern species' genome in the places where it differs.

The edited cells could then be used to create an embryo (bào thai) implanted (cấy, ghép) in a surrogate (mang thai hộ) host.

Tags: science

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