A problem in creating genome libraries for ancient organisms is the lack of DNA samples in fossils since DNA degrade over time.
Why don't we have a genome sequenced from Homo erectus?
A. There isn't enough research funding to pay for it.
B. DNA degrades over time and the fossils are too old.
C. H. erectus DNA is too similar to ours to prevent contamination.
D. No H. erectus fossils have been found in Germany, which is where the lab is located.
E. None of the above; we do have a sequenced genome of H. erectus.