Testing your own or a close relativeâs Y-DNA or mtDNA can reveal information about your paternal line (your fatherâs fatherâs father) and your maternal line (your motherâs motherâs mother) but not about anyone in between.
A magnetic resonance imaging (MRI) scan is a painless procedure that lasts 15 to 90 minutes, depending on the size of the area being scanned and the number of images being taken.epending on the size of the area being scanned and how many images are taken, the whole procedure will take 15 to 90 minutes. The MRI scanner will make loud tapping noises at certain times during the procedure. This is the electric current in the scanner coils being turned on and off.
An MRI scan of the brain typically takes at least 45 minutes during which time you will be asked to remain absolutely motionless for anywhere from several seconds to several minutes at a time. If you suffer from claustrophobia, tell your physician and you may arrange to use sedating medication before the MRI scan.