Which one of the following biological products was produced by the transgenic cow named Rosie?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Human alpha-lactalbumin in milk
Option (1) Human insulin — Incorrect. Human insulin is made by genetically engineered bacteria (E. coli). In 1983 Eli Lilly made the A and B chains in bacteria and joined them. It is not made in cow milk.
Option (2) Human alpha-lactalbumin in milk — Correct. Rosie was the first transgenic cow, made in 1997. Her milk carried the human protein alpha-lactalbumin, so it was better balanced for human babies than ordinary cow milk.
Option (3) Human growth hormone — Incorrect. Growth hormone is a hormone of the pituitary gland that controls body growth. It is not the protein that Rosie’s milk was enriched with.
Option (4) Human antibodies — Incorrect. Antibodies are proteins of the immune system made by B-lymphocytes. Rosie was not made to produce them.
NCERT Extract:
Transgenic Animals – …
