Homozygous and Hererozygous.
identical alleles for a character are homozygous.
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.|