The process in which meiotic nondisjunction generates aneuploid products can be shown in the following diagram:
A monosomic gamete from a first division disjunction in humans would have 0 chromosomes. A disomic gamete from a second division disjunction would have 2 chromosomes.
An individual formed by the union of a monosomic and a disomic gamete would be a cell with two chromosomes. This individual would be diploid like other humans but it would not be a combination of maternal and paternal gametes. Only the paternal gametes would be present in the individual.