Gene drive is simply a mechanism that enables a gene to spread itself through a population... When it becomes important is when we use it to spread a trait that is useful to humans.
Under normal genetic rules, animals have a 50:50 chance of inheriting a single gene from either parent. But a gene drive is a naturally occurring process where a specific gene is prioritised, meaning its chances of being inherited are up to 99%.
Scientists have studied this process for decades but have only recently developed ways to artificially replicate it in the lab. Now they hope to use it to spread genetic modifications through animal populations.
By pairing these processes, scientists can spread desired genetic modifications potentially throughout an entire species.
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