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.
Put down the cheeseburger! A vegan diet may help you live a longer, healthier life. Experts have long suspected that switching to a vegan or vegetarian diet may ease rheumatoid arthritis (RA) symptoms. A vegan diet eliminates all animal products, including meat, fish, eggs and dairy; most ordinary vegetarian diets eliminate only meat.