Question

Real life example of scientist investigation using observation, hypothesis, and prediction

Answer 1

There are so many examples for that in different areas, like microRNA sponge experiment carried out in our lab recently.
Here's one link: http://www.creative-biogene.com/Services/MicroRNA-Sponge-Service.html

Answer 2

What are the application of lentiviral vectors

?

Viral vectors are tools commonly used by molecular biologists to deliver genetic material into cells. This process can be performed inside a living organism (in vivo) or in cell culture (in vitro).

https://www.creative-biogene.com/Product/Viral-Vectors