Question

Ideally, in a process of genetically modifying an organism, a vector should have

• A. Recognition site
  
• B. Tetracycline resistant site
  
• C. Kanamycin resistant site
  
• D. Chloramphenicol resistant site
  

Answer 1

Answer: (A)

Recognition site

A vector is a DNA molecule used as a vehicle to artificially carry foreign genetic material into another cell, where it can be replicated and/or expressed. A vector should have a recognition site because without recognition site the required DNA can't be inserted into the vector for the transfer into another cell. When a vector has a recognition site it can be cut at those recognition sites with the help of enzymes and the required DNA fragment can be inserted into it for the transfer into another cell.

So, the correct answer is the 'Recognition site'.