Which of the following statements is not correct ?

Options

A. Insulin used for diabetic patients was earlier extracted from pancreas of slaughtered cattle and pigs which was more efficient than the genetically engineered insulin
B. PCR technique is applied to detect HIV suspected AIDS patients and to detect mutations in genes in suspected cancer patients
C. Bone marrow transplantation requires periodic infusion of genetically engineered lymphocytes in ADA deficient patients
D. Bioremediation is the one of the applications of biotechnology.

Answer

A

Explanation

Earlier, insulin used for curing diabetes used to bee extracted from pancreas of slaughtered pigs and cattle. This insulin was slightly different from human insulin and caused some undersirable side effects such as allergy. Genetically engineered insulin is far more efficient.