The haploid number is the number of chromosomes within the nucleus
of a cell that constitutes one complete chromosomal set. This number is commonly abbreviated as n, where n stands for the number of chromosomes. The haploid number will be different for different organisms. In humans, the haploid number is expressed as n=23.
Haploid human cells have 1 set of 23 chromosomes:
- Autosomal chromosomes (non-sex chromosomes): 22 sets.
- Sex chromosomes: 1 set.
human cells have 2 sets of 23 chromosomes for a total of 46 chromosomes:
- Autosomal chromosomes: 22 sets of 2.
- Sex chromosomes: 1 set of 2.