Which viral vectors are more commonly used when stable integration into the genome is required for treatment? O 1. Adenoviruses
2. Adeno associated viruses
O 3. Lentiviruses
O 4. Retroviruses

4. Retroviruses

Explanation: Retroviruses are among the most widely used viral vectors in gene therapy. They produce faithful transmission of the transgene into the transduced cell progeny by integrating their complementary DNA into the host genome during their life cycle

advantage of using stem cells in medical research:

1.       it provides medical benefits in the fields of therapeutic cloning and regenerative medicine.

2. it provides great potential for discovering treatments and cures to a variety of diseases including parkinson disease, spinal cord injuries, diabetes, alzheimer’s disease and many more.

3. limbs and organ could be grown in lab from stem cells and then used in transplant or treat illness.