Which Form of Aneuploidy Describes an Organism That is Missing

Question

Which form of aneuploidy describes an organism that is missing a single chromosome?
A)Nullisomy
B)Monosomy
C)Disomy
D)Trisomy
E)Tetrasomy

Accepted Answer

Monosomy describes an organism that is missing a single chromosome. Nullisomy describes an organism that is missing a pair of homologous chromosomes, disomy describes an organism that has two copies of a particular chromosome, trisomy describes an organism that has three copies of a particular chromosome, and tetrasomy describes an organism that has four copies of a particular chromosome.