Copyright 2014-2017, Northern Illinois Regional Science Fair and Dawn Boyer
Why do cancer cells become immune to chemotherapy?
Why do bacteria become immune to antibiotics?
Why can people become immune to diseases that they have already had?
What do we know about the AIDS virus(es)?
What does it take to make blood clot? Why can’t hemophiliacs’ blood clot normally?
Why did Sickle Cell Anemia become common in certain parts of the world?
Tracing human ancestry through Y-chromosome DNA (which exists in males only) and mitochondrial DNA (from your mother only). These seem to point to three mothers of the whole human race, who all had one mother! And to one father of the human race. What explains this?
We now know that a fertilized egg cell can go through several cell divisions without having been fertilized! What makes it start to develop, and when does the father’s sperm cell DNA become needed?
What did Gregor Mendel discover that [could have] started the science of genetics? (After he died, his records were destroyed because the people around him didn’t realize the importance of what he was researching.)
What methods are used to determine the ages of fossils? What problems do we have using those methods? (Hints: fossils have been found with UNFOSSILIZED red blood cells, partly-intact DNA, and "squishy" structures like ligaments and blood vessels; and some "fossil" mollusks -- stink! If they were completely fossilized, they wouldn't still be decomposing and stinking! Yet, they're often said to be millions of years old!)
How do fossils form? [Hint: it CAN’T take millions or thousands of years, or the plant or animal would rot or be eaten rather than fossilize!]
Why do we have so many billions of fossils, when normally, things just don’t fossilize?