Question

Which of the following is commonly used as a vector for introducing a DNA fragment in human lymphocytes?

• A. $\lambda -\text{phage}$
• B. $\text{Ti plasmid}$
• C. $\text{Retrovirus}$
• D. $\text{pBR322}$

Answer 1

The correct option is C $\text{Retrovirus}$

Usually a retrovirus is used as a vector for introducing a DNA fragment in human cells like lymphocytes. They are used as vectors in gene therapy to introduce the desired gene, so as to replace the functioning of a defective gene.