Researchers created the animal using a technique that gives precise control over which genes are active within it.

This article titled “GM cow designed to produce milk without an allergy-causing protein” was written by Ian Sample, science correspondent, for The Guardian on Monday 1st October 2012 19.00 UTC

A genetically modified cow whose milk lacks a substance that causes allergic reactions in people has been created by scientists in New Zealand.

In their first year of life, two or three in every hundred infants are allergic to a whey protein in milk called BLG. The researchers engineered the cow, called Daisy, to produce milk that doesn't contain the protein.

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