Chiasma. The cross-shaped exchange configuration between non sister chromatids of homologous chromosomes that is visible during prophase I of meiosis. chiasma The site where the exchange of chromosome segments between homologous chromosomes takes place (crossing-over) (pl.: chiasmata). PICTURE
Vegan diets are based on grains and other seeds, legumes (particularly beans), fruits, vegetables, edible mushrooms, and nuts. Meat analogues (mock meats) based on soybeans (tofu), or wheat-based seitan/gluten, are a common source of plant protein, usually in the form of vegetarian sausage, mince, and veggie burgers.
Veganism is a type of vegetarian diet that excludes meat, eggs, dairy products and all other animal-derived ingredients. Many vegans also do not eat foods that are processed using animal products, such as refined white sugar and some wines.or example, foods such as a vegetarian burrito without cheese or sour cream would be vegan, a vegetarian Thai curry made from coconut milk is vegan, pasta with tomato sauce or another non-meat and non-dairy sauce is vegan, and most breads are vegan. See also: 1  Most popular vegan recipes on About.com.