Match the Column I with Column II :

A-1,B-4,C-2,D-3

The correct answer is Option (3) -A-1,B-4,C-2,D-3

Column I              Column II

A. Bt tobacco   1. Meloidogyne incognita

B. Humulin       4. Diabetes

C. Probe          2. A single-stranded DNA or RNA tagged with a radioactive molecule

D. ELISA          3. Diagnostic test

Explanation:

A. Bt tobacco - Meloidogyne incognita: Bt tobacco refers to tobacco plants that have been genetically modified to express a protein derived from the bacterium Bacillus thuringiensis (Bt), which provides resistance against pests like Meloidogyne incognita, a species of root-knot nematode.

B. Humulin - Diabetes: Humulin is a brand name for a type of human insulin used in the treatment of diabetes. It is produced through recombinant DNA technology.

C. Probe - A single-stranded DNA or RNA tagged with a radioactive molecule: In molecular biology, a probe is a labeled single-stranded DNA or RNA molecule used to detect the presence of a complementary target sequence in a sample. The radioactive tag is often used for detection purposes.

D. ELISA - Diagnostic test: Enzyme-Linked Immunosorbent Assay (ELISA) is a diagnostic test used to detect the presence of antibodies or antigens in a sample. It is widely used in medical and research settings for various purposes, including disease diagnosis.