The investigators can locate fingerprints to find out who the criminal is. Other things such as blood, saliva can be tracked down to the criminal
He La cells have play important role in the study of cancer and even in cancer therapies. He La cells are also used to diagnose trisomic disorders such as Down's Syndrome with the help of chromosome banding. Some genes present in the He La cells are used as markers and compared with the other cell line in question. Presence of the marker for Down's syndrome in the cell in question shows that the person is suffering from the disease.
I believe the thyroid controls most, if not all of those things. (Again, I'm not entirely sure.)
A. Occurs mostly in males.
Hope this helps. [:
