Final answer:
Alloploidy involves the contribution of homologous chromosomes from different species.
Step-by-step explanation:
False. 
Alloploidy involves the contribution of homologous chromosomes from different species, not nonhomologous chromosomes. In alloploidy, two different species reproduce to form a viable offspring known as an allopolyploid. 
This occurs when gametes from the two different species combine.