What is the primary result of synapsis during meiosis?

The primary result of synapsis during meiosis involves the pairing and potential exchange of genetic material between homologous chromosomes. During prophase I of meiosis, homologous chromosomes come together and align closely in a process known as synapsis, forming structures called tetrads. This close association facilitates crossing over, which is the exchange of segments of DNA between non-sister chromatids of homologous chromosomes. This genetic recombination increases genetic diversity in the resultant gametes, contributing to the variation seen in sexually reproducing populations.

While the separation of chromatids is a subsequent event in meiosis, and the formation of gametes is the overall outcome of the meiotic process, synapsis specifically refers to this crucial step of pairing and exchanging genetic information, making it the correct focus in this context.