Answer:
The Doctrine of Specific Nerve Energies has been and continues to be enormously influential in the physiology, psychology, and philosophy of perception. In simple terms, the Doctrine states that we directly perceive in the first instance the activity of our nerves, rather than properties in the external world.
10 ng is the minimum amount of DNA to visualize it on agarose gel. The amount of DNA to load per well is variable. The least amount of DNA that can be detected with ethidum bromide is 10 ng.
Science has no opinions, yet though is usually biased.