Is a reduction division of the nuclear material so that each gamete contains only half as much hereditary material as the parent cell.?

Yes, a reduction division refers to the process of meiOSis, where the nuclear material is halved, resulting in gametes that contain only half the hereditary material of the parent cell. This reduction is crucial for sexual reproduction, ensuring that when two gametes fuse during fertilization, the resulting offspring have the correct diploid number of chromosomes. Thus, each gamete carries a unique combination of genes, contributing to genetic diversity.