Question

Match the following \[ \begin{array}{|c|l|c|l|} \hline & Genetic element/process & & Characteristic \hline A & \text{F plasmid} & I & \text{Uptake of naked DNA} B & \text{Transformation} & II & \text{Sex pilus formation} C & \text{Generalized transduction} & III & \text{Random bacterial DNA transfer} D & \text{Hfr strain} & IV & \text{High-frequency chromosomal gene transfer} \hline \end{array} \] The correct answer is

• A. A -- II, B -- I, C -- III, D -- IV
• B. A -- I, B -- II, C -- IV, D -- III
• C. A -- III, B -- IV, C -- I, D -- II
• D. A -- II, B -- III, C -- I, D -- IV

Hint:

Remember the bacterial gene transfer methods: \[ \boxed{ \begin{aligned} \text{Transformation} &\rightarrow \text{Naked DNA} \text{Transduction} &\rightarrow \text{Bacteriophage-mediated transfer} \text{Conjugation} &\rightarrow \text{Sex pilus (F plasmid)} \text{Hfr strain} &\rightarrow \text{Chromosomal gene transfer} \end{aligned} } \]

Answer 1

The Correct Option is A

Step 1: Match each genetic process with its characteristic. \[ \boxed{ \begin{aligned} \text{F plasmid} &\rightarrow \text{Sex pilus formation (II)} \text{Transformation} &\rightarrow \text{Uptake of naked DNA (I)} \text{Generalized transduction} &\rightarrow \text{Random bacterial DNA transfer (III)} \text{Hfr strain} &\rightarrow \text{High-frequency chromosomal gene transfer (IV)} \end{aligned} } \]

Step 2: Write the correct matching. Thus, \[ \boxed{ A-\mathrm{II},\; B-\mathrm{I},\; C-\mathrm{III},\; D-\mathrm{IV} } \] Therefore, \[ \boxed{(A)} \] is the correct answer.