Question

What do you called "an independent, stable, self replicating piece of DNA in bacterial cells-that is not a part of the normal cell genome & that never becomes integrated into- the host cell"?

Answer 1

Phosphorus is a chemical element with symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth. It has a concentration in the Earth's crust of about one gram per kilogram.