The individuals with 2n ± 1 chromosomes are commonly known as

Answer: Option B

The individuals with 2n ± 1 chromosomes are commonly known as Aneuploid.
Aneuploidy is the presence of an abnormal number of chromosomes in a cell, for example, a human cell having 45 or 47 chromosomes instead of the usual 46.
It does not include a difference of one or more complete sets of chromosomes. A cell with any number of complete chromosome sets is called a euploid cell. An extra or missing chromosome is a common cause of some genetic disorders.