Fertilization is when a sperm and egg fuse together to make a zygote. Once formed, the zygote will undergo which type of cell division to eventually grow into a fetus? mitosis

meiosis II

both meiosis I and II

meiosis I

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.