Various Types of Linkage:
Linkage is of two types –
1. Complete linkage:
When certain genes located so nearly on the same chromosome and tend to remain linked together while passing from one generation to another without new combinations are termed complete linkage.
2. Incomplete linkage:Linked genes are not inherited always in their combination. In the homologous chromosomes or at the time of meiosis exchange of such genes may be found due to crossing over. The genes located at distance on the chromosome are also incompletely linked because of more chances of isolation by crossing over in these.
