The <e1>mosaicism</e1> observed in the proband was derived from a postzygotic somatic <e2>mutation</e2> of the normal maternal y chromosome.
The mosaicism observed in
The mosaicism observed in the proband was derived from a postzygotic somatic mutation of the normal maternal y chromosome.
<triplet> mosaicism <subject> mutation <object> Cause-Effect(e2,e1)