Which organism can produce the highest number of genetically different gametes?

It depends on the number of chromosomes the organism has. 
For example humans have 48 so the haploid cells contain 24 chromosomes.

The cells divide by a process called mitosis. This is the process by which a cell divides resulting in two daughter cells that are genetically identical to each other and to the parent cell.

Calcinosis is the diagnostic term that means an abnormal buildup of calcium on the kneecap (patellar) surface. it is a term uses to describe a group of disorders in which calcium deposits form in the skin. it is also referred to the abnormal deposit of calcium phosphate.