The function of the plasma membrane is to only allow certain items through, while blocking the rest.
Answer:
Gene duplication can provide new genetic material for mutation, drift and selection to act upon, the result of which is specialized or new gene functions. Without gene duplication the plasticity of a genome or species in adapting to changing environments would be severely limited.
Analysis is when / before you do the test on the samples you have.
A conclusion is the data and information you have after the sample test is completed