<p><strong><span style="font-size:11px">A model organism is a non-human species that is extensively studied to understand particular biological phenomena, with the&nbsp;expectation that discoveries made in the organism model will provide insight into the workings of other organisms.&nbsp;The reason why I am writing about model organism is that I am study about the DNA repair mutant zebrafish. So I&#39;m very curious about the model organisms such as c. elegans , e.coli, or drosophila, xenopus and&nbsp;mouse and so on .</span></strong></p>