Question

Hirudin is (1)A protein produced by Hordeum vulgare,which is rich in lysine (2)A toxic molecule isolated from Gossypium hirsulum,which reduces human fertility (3)A protein produced from transgenic Brassica napus,which prevents blood clotting (4)An antibiotic produced by a genetically engineered bacterium,Escherichia coli

Answer 1

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Hirudin is a naturally occurring peptide in the salivary glands of blood-sucking leeches that has a blood anticoagulant property. This is fundamental for the leeches’ alimentary habit of hematophagy, since it keeps the blood flowing after the initial phlebotomy performed by the worm on the host’s skin.

Answer 2

Answer:

3. it is a protein produced from transgenic brassica napus which prevents blood clotting.

Explanation:

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