Match List-I with List-II
| List-I | List-II |
|---|---|
| Term | Characteristics |
| (A) Bt toxin | (I) ADA deficiency |
| (B) RNAi | (II) Increased food supply |
| (C) Green revolution | (III) cryIAc gene |
| (D) Gene Therapy | (IV) mRNA silencing |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (A)-(III), (B)-(IV), (C)-(II), (D)-(I)
(A) Bt toxin — this matches (III) cryIAc gene. The Bt toxin is coded by the cry genes of Bacillus thuringiensis. The proteins of cryIAc and cryIIAb control cotton bollworms, so these genes are put into cotton.
(B) RNAi — this matches (IV) mRNA silencing. In RNA interference, a complementary dsRNA binds to a specific mRNA and stops its translation. It is used to protect tobacco from the nematode Meloidegyne incognitia.
(C) Green revolution — this matches (II) Increased food supply. High-yielding varieties, fertilisers and better farming tripled the food supply, though it was still not enough for the growing population.
(D) Gene Therapy — this matches (I) ADA deficiency. The first clinical gene therapy, in 1990, was given to a 4-year-old girl with adenosine deaminase deficiency; a working ADA gene was put into her lymphocytes.