If the four cells shown resulted from cell division of a single cell with diploid chromosome number 2n = 4, what best describes what just occurred?
A) normal meiosis
B) translocation
C) inversion
D) nondisjunction

Question

If the four cells shown resulted from cell division of a single cell with diploid chromosome number 2n = 4, what best describes what just occurred? 
A) normal meiosis 
B) translocation 
C) inversion 
D) nondisjunction

Quizplus · Accepted Answer

Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly during cell division, resulting in an abnormal distribution of chromosomes in the daughter cells. In this case, the four cells shown have different amounts of chromosomes, indicating that nondisjunction occurred during cell division.

If the Four Cells Shown Resulted from Cell Division of a Single