@NewStudent The haploid cells have the same chromosomes types (by which I mean 1-22 and a sex chromosome), but only one copy of each. Other cells have 2 copies of each chromosome type for a total of 46 per cell. In meiosis, only one copy of each type goes to each daughter cell for a total of 23 chromosomes per daughter cell.

So although the alleles may be varied, the first 22 chromosomes will contain the same genes. The X chromosome has some 600 more genes than the Y chromosome.

The chromosomes are named in descending order of size (i.e 1 is the biggest, 22 is the smallest), except the se…