1. Based on position of centromere:
a) Metacentric: Centromere remains at the center and divides the chromosome into 2 halves.
b) Sub-metacentric: Centromere is near one side and divides chromosome into two unequal halves.
c) Acrocentric: Centromere lies near one end.
d) Telocentric: Centromere is at terminal position.
2. Based on function:
a) Autosomes: Determines various body features.
b) Sex chromosome: Determines sex of an individual.