Question
Biology Question on Applications of Biotechnology
Hirudin is
A
a protein produced by Hordeum vulgare, which is rich in lysine
B
a toxic molecule isolated from Gossypium hirsutum, which reduces human fertility
C
a protein produced from transgenic Brassica napus which prevents blood clotting
D
an antibiotic produced by a genetically engineered bacterium Escherichia coli
Answer
a protein produced from transgenic Brassica napus which prevents blood clotting
Explanation
Solution
Hirudin is a protein that stops blood clotting. The gene encoding hirudin was chemically synthesised. This gene was then transferred into Brassica napus, where hirudin accumulates in seeds. The hirudin is purified and used as medicine.