Question

Select the incorrect option regarding the milk produced by the transgenic cow ‘Rosie’

• A. The milk has human alpha-lactalbumin
• B. The milk has human protein content of 2.4 g/L
• C. The milk is nutritionally more balanced product than the normal cow-milk for babies
• D. It was produced for the first time in the year 2001

Answer 1

The correct option is D It was produced for the first time in the year 2001

Transgenic animals are those which have their DNA manipulated to express the desired foreign gene.

The first transgenic cow, Rosie, was engineered such that the human α-lactalbumin gene was introduced into it. This gene was expressed in its mammary tissues and made its milk enriched with human α-lactalbumin protein.

With a human protein content of 2.4 g/L, this milk was nutritionally more balanced than the milk produced from the normal cows. This milk was produced for the first time in the year 1997 (and not 2001).