DNA replication only happens during meiosis because the chromosome number of the species remains the same from one generation to the next, the chromosome number of germ cells must be reduced by half during meiosis. To achieve this feat, meiosis, unlike mitosis involves a single round of DNA replication followed by two rounds of cell division.
B because you can get cancer badly by smoking people smoke cause of stress the stress makes it worse to smoke
Scientists start with general observation and then make a hypothesis
