Meselson and stahl actually let their experiment run for a fourth generation with cultures growing in the presence of 14n. explain what data from third- and fourth-generation dna should look like—that is, where the dna band(s) should be.

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!