Both A and R are correct and R is the correct explanation of A.
The cloning site present in the \( \textit{rop}\) site of \(\textit{E. coli}\) cloning vector pBR322 is:
The cloning site present in the ampicillin resistance gene of \( \textit{E. coli}\) cloning vector pBR322 is :
Which sol is used as an intramuscular injection?
The reactions which occur in blast furnace at 500 – 800 K during extraction of iron from haematite are
i. \(3Fe_2O_3 + CO \rightarrow 2Fe_3O_4 + CO_2\)
ii. \(Fe_2O_3 + 3C \rightarrow 2Fe + 3CO\)
iii. \(FeO + 4CO \rightarrow 3Fe + 4CO_2\)
iv. \(FeO + CO \rightarrow 2FeO + CO_2\)
Which of the following reactions give phosphine?
i. Reaction of calcium phosphide with water
ii. Heating white phosphorus with concentrated NaOH solution in an inert atmosphere
iii. Heating red phosphorus with alkali