Klinefelter syndrome is a consequence of
D. nondisjunction
Explanation:
Klinefelter syndrome and its variants aren't inherited; these body changes sometimes occur as random events throughout the formation of fruitful cells (eggs and sperm) in a very parent. a mistake in a biological process known as miosis leads to a cell with an abnormal range of chromosomes.
Nondisjunction is Failure of paired chromosomes to separate throughout t cellular division, in order that each chromosome move to one cell and none move to the opposite.
