* The Principle: Organisms that are more closely related (shared a recent common ancestor) will have DNA sequences that are more similar to each other than organisms that are more distantly related. This is because mutations accumulate over time, causing differences in DNA sequences.
* Example: Humans and chimpanzees share a relatively recent common ancestor, so their DNA is very similar (about 98% identical). Humans and bacteria, on the other hand, share a much more distant common ancestor, so their DNA is much less similar.
To answer your question, you need to provide the two organisms you want to compare. Please give me the names of the two organisms you are interested in, and I can tell you which one would be more closely related to another based on DNA similarity.
