Distinguish between: Homozygous and Heterozygous.

	Homozygous	Heterozygous
1.	Organisms having identical alleles for a character are homozygous.	Organisms having dissimilar alleles for a character are heterozygous.
2.	It is pure or true breeding	It is hybrid
3.	They form only one type of gamete	They form more than one type of gametes.
4.	e.g. Tall (TT), Dwarf (tt).	e.g. Tt.