Chiasma (genetics) In genetics, a chiasma (pl. chiasmata) is the point of contact, the physical link, between two (non-sister) chromatids belonging to homologous chromosomes. At a given chiasma, an exchange of genetic material can occur between both chromatids, what is called a chromosomal crossover, but this is much more frequent during meiosis than mitosis. In meiosis, absence of a chiasma usually result in improper chromosomal segregation and aneuploidy.
For example, certain kinds of breast cancers are insulin sensitive, and thus eating a lot of carbohydrates (ironically like in a vegan diet) would cause your body to produce lots of insulin, making this an inefficacious strategy in reducing risk for those particular kinds of cancer.
Veganism is a strict type of vegetarianism that excludes meat and all animal products. Vegans do not eat meat, fish, eggs, dairy products, or any foods containing them. A vegan diet relies on plant-based foods including fruits, vegetables, grains, beans, nuts, and seeds. A vegan diet can be a healthful and nutritionally adequate diet; however, a vegan must make sure they eat enough foods with protein, calcium, iron, vitamin B12, and omega-3 fatty acids.