The linking of the antibiotic resistance gene with the plasmid vector of Salmonella typhimurium by Stanley Cohen and Herbert Boyer was made possible by the enzyme:
DNA ligase is used to join the antibiotic resistance gene with the plasmid vector.
- This technique was a pioneering step in recombinant DNA technology.
- DNA ligase is used to join the antibiotic resistance gene with the plasmid vector.
- This technique was a pioneering step in recombinant DNA technology.

| List - I | List - II |
|---|---|
| A) Morphine | IV) Pain killer |
| B) Cannabinoids | V) Dopamine |
| C) Cocaine | I) Cardiovascular system |
| D) Benzodiazepines | II) Tranquilizers |
A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following: 
(i) Express \(y\) as a function of \(x\) from the given equation of ellipse.
(ii) Integrate the function obtained in (i) with respect to \(x\).
(iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration.
OR
(iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\).