pentasomy

pentasomy

 [pen″tah-so´me]
the presence of three additional chromosomes of one type (e.g., 5 X chromosomes) in an otherwise diploid cell (2n + 3).

pentasomy

the presence of three additional chromosomes of one type (e.g. 5 X chromosomes) in an otherwise diploid cell (2n + 3).
References in periodicals archive ?
com) is an online listserv support group serving families and individuals dealing with tetrasomy or pentasomy X (as well as triple X/tetra X and tetra X/penta X).