Which best describes genetic engineering?
a. fragments of dna that have desired genes are isolated to form recombinant dna for use in a host.
b. all the dna from a desired organism is isolated to form recombinant dna for use in a host.
c. different sections of dna from a desired organism are inserted into a host so that beneficial traits will be expressed.
d. one strand of dna is isolated and inserted into a host so recombinant dna can be formed.

A. The idea is to input a selected genes of one organism into another organism so that the genes would become a part of the host's DNA

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.