Giving 'T' symbol for true statement and 'F' symbol for false statement, select suitable option from the given options for following statements.
(i) Cytosine base is the derivative of pyrimidine.
(ii) β-D ribose sugar is present in DNA.
(iii) The message for the synthesis of a specific protein is present in RNA.
(iv) DNA is responsible for maintaining the identify of different species of organisms for one century.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.