Two molecules that are responsible for stem cells that all start out identical to form very different types of cells

it is prolly d and c and f

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .