Statement I : Using Agrobacterium vectors, nematode-specific genes were introduced into the host plant .

Statement II : The capacity to generate a whole plant from any cell/explant is called totipotency.

Both statements I and II are correct .

The correct answer is Option (3)-Both statements I and II are correct .

Statement I: Using Agrobacterium vectors, nematode-specific genes were introduced into the host plant.

This statement is correct. Agrobacterium tumefaciens is a bacterium commonly used as a tool in plant genetic engineering. It can transfer a specific segment of DNA (T-DNA) into the plant genome. Researchers have used this system to introduce nematode-specific genes into plants to confer resistance against nematode pests. This technique allows the plant to produce substances that interfere with the nematode's ability to infect or damage the plant.

Statement II: The capacity to generate a whole plant from any cell/explant is called totipotency.

This statement is also correct. Totipotency is the ability of a single cell or explant to regenerate into a whole plant. This concept is fundamental in plant tissue culture and genetic engineering, as it allows scientists to regenerate entire plants from genetically modified cells or tissues.