Use correct grammar and write clear sentences. It's important that you're not going to use apostrophes incorrectly. Computer crashes are not an excuse for late papers. One of the goals of this course is for you to be able to analyze and form an informed opinion about issues related to cellular and genetic biology. Issues are defined in this class as a question about which informed people disagree.
Issues involve ideas that are controversial.
You have to come down on one side of the issue, but you must support your decision with evidence. It is data. It must be supported by a citation. Evidence is not an opinion. Opinions are useful argument tools, but they must be recognized as such.