Assertion: chromosome's cell | /r/HasAspect | missing chromosome
Facets:
Source sentences:
text: If the chromosomes don’t split into equal halves, the new cells can have an extra chromosome (47 total) or have a missing chromosome (45 total).
text: A monosomic cell has one missing chromosome (2n - 1) = usually lethal except for one known in humans: Turner's syndrome (monosomy XO).