Chromosome Number
Number of
chromosomes in human somatic cells:
46
Number of
chromosomes in sex cells:
23
When
there are 46 chromosomes present
When
there are 23 chromosomes present
Diploid or 2n:
Haploid or n:
Aneuploidy:
When
there are any number of chromosomes present that is
not a multiple of 23 (i.e. trisomy24 or monosomy 22)
Polyploidy:
When
there are >64 chromosomes present and is a multiple
of 23 (i.e. triploidy 69 or tetraploidy 92)