Answer:
Oil Immersion Higher magnification means the light is bent more. At a certain point, the light is bent so much that it can't make it through the objective lens. At that point – usually around 100x for standard lab microscopes – you'll need to put a drop of oil between your specimen and the objective lens.
Explanation:
Question : DNA fragments show up as a series of different sized ______.
Logical Answer : Bands
They are used for them to adapt to the environment
