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.
A cancer prevention diet is one that is high in fiber, low in fat (especially animal fat), and includes generous portions of fruits and vegetables. It also minimizes or excludes alcohol. The best diets are pure vegetarian diets.
HASfitâs Free Vegan Diet & Vegan Meal Plan. 1  100% Healthy Vegan Diet to Lose Weight This isnât a fad diet or a diet based around taking pills all day. The vegan weight loss diet is a low glycemic diet that is perfect for those looking to lose weight naturally. 2  You get to eat! Not a starvation diet, youâll eat 5x per day!