contributed by Michael Eisen
Do you consider mitochondrial DNA to be part of a eukaryote's genome?
Michael Eisen had first posed this question on his Twitter, and kindly allowed us to "borrow" it. There were quite a few interesting answers on Twitter, you can read them here.
Does DNA do anything other than serve as a repository for genetic information?
Are there any niches in the human body where you might find bacteria carrying out autotrophic metabolism?
Bacterial cells are smaller than eukaryotic cells, with some exception. Viruses are smaller than bacteria, with some exception. These are just two examples of why definitions in Biology, unlike in Physics and Chemistry, most often need to be qualified. What does this tell us about Biology?
Why are no bacterial pathogens known to use a Bdellovibrio-type of mechanism to penetrate into eukaryotic cells?
Given that spores are so effective in ensuring survival of bacteria, why don't all species make them?
by Ian Booth — Do bacteria ever take up intact RNA molecules?
