24.Which of the following vector is used extensively for genetic engineering in animals? A. E.coli B. Ti Plasmid C. Bacillus thuringiensis D. Retrovirus (disarmed)
Option B Vector is a DNA molecule used in genetic engineering as a vehicle to carry foreign genetic material from one cell into another cell where it is replicated or expressed. Examples of vectors include plasmid, cosmid, Lambda phages
