The cells in our body are all genetically identical, apart from the:

Explanation

Reproductive cells, however, are different. They are produced in the gonads (ovaries in females and testes in males) and are specialized for the purpose of reproduction. In contrast to somatic cells, which have two copies of each chromosome (one from each parent), reproductive cells only have one copy of each chromosome. This is because they are produced through a process called meiosis, which involves two rounds of cell division. During meiosis, the homologous chromosomes (pairs of chromosomes that are identical in size and structure) are separated, resulting in cells with half the number of chromosomes as the original cell. This reduction in chromosome number is necessary for sexual reproduction, as it allows for the mixing of genetic material from two parents to create a new individual with a unique genetic makeup.