Genetic engineering or gene therapy? “what is a gene introduced into bone marrow that results in "long-term" correction for a severe immune deficiency disease? ”

all answers true and false

explanation:

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.