The only bones there now are artificial. Kris is trying to determine how and where the disposal of the bones took place. Should we be so fortunate as to eventually relocate the bones found on Nikumaroro in 1940, or find more which may still be there, we'll need samples of mitochondrial DNA from both the Earhart and Noonan families so that comparisons can be made. We must have mitochondrial DNA because that is the only kind expected to have survived in 61 year-old bones. This hardy form of DNA is passed exclusively through the female because the male's mtDNA resides in the tail of the sperm which, of course, never enters the egg.
Amelia is no problem.
Her sister's daughter could be a source. Fred is a problem. At present we know of no living relative except an alleged male cousin. Surprisingly little documentable information is available on Frederick J. Noonan and most of the brief biographical sketches of him in books about Earhart are little more than folklore. Their efforts necessarily involve filling in the many blanks in our knowledge of the largely neglected and often maligned other half of the 1937 world flight team.