The relationship between the three are. Genes together create DNA and DNA assembles up whole chromosomes. How Are Dna Chromosomes Genes And Alleles Related Socratic DNA genes and chromosomes are the parts of the genetic material that is essential for the hereditary and passing of the information from generations. . 2018 August 7 LearnGenetics. Chromosomal crossover or crossing over is the exchange of genetic material during sexual reproduction between two homologous chromosomes non-sister chromatids that results in recombinant chromosomesIt is one of the final phases of genetic recombination which occurs in the pachytene stage of prophase I of meiosis during a process called synapsis. DNA is the genetic material that gets replicated and translated to yield proteins coding for the function. Retrieved April 01 2022 from httpslearngeneticsutahedu. Genetic Science Learning Center.