Scientists are using dna fingerprinting to identify the bodies of those killed in the 9/11 tragedy. most on-site evidence is in the form of bones or teeth. yet the evidence supplied by the victims' families may include hair or tooth brushes. how are scientists able to compare dna from bones or teeth to that found in hairs on a hairbrush?

C)DNA is the same in every cell of the body and does not change over time.

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.