Question

What are diploid and haploid number?

Answer 1

Two gametes form a diploid zygote with twice this number (2n, the zygotic or diploid number) i.e. two copies of autosomal chromosomes. For humans, a diploid species, n = 23. A typical human somatic cell contains 46 chromosomes: 2 complete haploid sets, which make up 23 homologous chromosome pairs.

Answer 2

Diploid cells have 2 sets of chromosomes, or 46 chromosomes. Haploid cells (such as sex cells) have only 1 set of chromosomes, or 23 chromosomes.