By Pallab GhoshScience correspondent, BBC
News
20 June 2018
Scientists have created pigs that are immune
to one of the world's costliest livestock diseases.
The team edited the animals' DNA to make them
resist the deadly respiratory disease known as PRRS - a move that could prevent
billions of pounds in losses each year.
However, consumers have traditionally been
reluctant to eat genetically altered animals and crops.
This poses a significant barrier to farmers
owning gene-edited pigs.
And because genome, or gene, editing (GE) is
relatively new, the absence of regulation currently prevents their sale anyway.
GE is different to the more widely used
technology of genetic modification. The former involves the precise alteration
of an organism's DNA, while the latter is characterised by the introduction of
foreign genetic sequences into another living thing.
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