The bmn cells are multiploidy and heteroploidy so highly that in which the diploid was few and far between , and multiploid was so much that came to 90 % . even there were 533 chromosomes in one cell Bmn细胞是高度异倍化、高度多倍化的细胞系，其典型二倍体极少而高多倍化群达90 ，最多的染色体一群在500条以上。
