Question

The vector phage lambda is commonly used for gene transfer in _________

• A. plant cell
• B. yeast
• C. bacteria
• D. insect

Hint:

Lambda phage vectors are commonly used in cloning large DNA fragments in bacteria.

Answer 1

The Correct Option is C

Step 1: Understanding bacteriophage lambda.
Lambda phage is a bacterial virus that infects {Escherichia coli} and is widely used as a cloning vector.

Step 2: Role in gene transfer.
It introduces foreign DNA into bacterial cells during infection, making it useful in recombinant DNA technology.

Step 3: Eliminating incorrect options.
Lambda phage does not infect plant, yeast, or insect cells.

Step 4: Conclusion.
Therefore, lambda phage is used for gene transfer in bacteria.