Explain antibiotic resistance observed in bacteria in light of Darwin's Natural selectionTheory.

Appearance of antibiotic- resistant bacteria is an example of:

Explain the folloiwing: natural selection.

Describe Darwin’s theory of natural selection.

Who observed bacteria for the first time?

An antibiotic resistance gene in a vector usually help in the selection of :

Explain what is observed :- when a beam of light is passed through a colloidal sol.

Explain what is observed when abeam of light is passed through colloidal solution of arsenious sulphide? Give the name of the phenomenon also.