Should scientists who identify genes and create new genetic engineering techniques have the right to patent their methods for their own profit?

Scientists who identify genes and create new genetic engineering techniques must have patent of their for the welfare of the society not for his own profit. The techniques must be used by the person in such a way that it helps the people of the society.

The scientists should help the nation by their invention, it is not at all good that a scientist should have patent for his personal profit. This would be an unethical practice.

a- all cells come from pre-existing cells

b. read the phase at the intersection of any given temperature and pressure.