Question

Choose the incorrect pair (and = all, only = only).

\[ \begin{array}{|c|l|l|} \hline & \text{List-I} & \text{List-II} \\ \hline \text{A} & \text{Frankel Conrat} & \text{Genetic nature of DNA} \\ \hline \text{B} & \text{Bessey} & \text{Phylogenic classification} \\ \hline \text{C} & \text{Buchner} & \text{Zymase} \\ \hline \text{D} & \text{Sumner} & \text{Catalase} \\ \hline \end{array} \]

• A. B and C only
• B. A and D only
• C. A and C only
• D. B and D only

Hint:

Remember: \[ \boxed{ \begin{aligned} &\text{Frankel-Conrat} &&\rightarrow \text{RNA is genetic material in TMV} &\text{Bessey} &&\rightarrow \text{Phylogenetic classification} &\text{Buchner} &&\rightarrow \text{Zymase} &\text{Sumner} &&\rightarrow \text{Crystallized urease} \end{aligned} } \]

Answer 1

The Correct Option is B

Step 1: Examine each pair. \[ \begin{aligned} A: &\text{Frankel-Conrat} \rightarrow \text{Genetic nature of DNA} \end{aligned} \] This is incorrect because Frankel-Conrat demonstrated that RNA is the genetic material in Tobacco Mosaic Virus (TMV). \[ \begin{aligned} B: &\text{Bessey} \rightarrow \text{Phylogenetic classification} \end{aligned} \] This pair is correct. \[ \begin{aligned} C: &\text{Buchner} \rightarrow \text{Zymase} \end{aligned} \] This pair is correct. Buchner discovered the enzyme zymase. \[ \begin{aligned} D: &\text{Sumner} \rightarrow \text{Catalase} \end{aligned} \] This is incorrect because Sumner crystallized urease, not catalase.

Step 2: Choose the incorrect pairs. Hence, the incorrect pairs are \[ \boxed{\text{A and D only}.} \] Therefore, the correct option is \[ \boxed{(B).} \]