What does analogous structure mean?

Analogous structures are similar structures that evolved independently in two living organisms to serve the same purpose.

The term “analogous structures” comes from the root word “analogy,” which is a device in the English language where two different things on a basis of their similarities.

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.

i think it is dna, i'm not totally sure but i think it might be.