Y-linked inheritance (hollandic inheritance)
The diseases linked to the Y chromosome are very rare, because the Y chromosome contains a small amount of genetic information. All genes found on the differential segment of the Y chromosome are inherited only by male children. They never appear in women because they lack the Y chromosome.
An example of this type of hollandic inheritance is atrial hypertrichosis, determined by genes of the differential segment of the Y chromosome that causes this character to pass only from parents to children, without women having hair on their ears.
In humans, genes linked to the Y chromosome are involved in the differentiation and development of the testes.