Aresearcher introduces double-stranded rna into a culture of mammalian cells and can identify its location or that of its smaller subsections experimentally, using a fluorescent probe. some time later, she finds that the introduced strand separates into single-stranded rnas, one of which is degraded. what does this enable the remaining strand to do

This process enables the final strand to actually bind itself to the complementary, or matching, pieces of the regional mRNA strands. RNA can be degraded in many different ways that follow many different forms. In this particular case, the degredation of the single-stranded RNA created the new ability for binding.

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.

The right answer is c.sandstone.