The cross-shaped exchange configuration between non sister chromatids of homologous chromosomes that is visible during prophase I of meiosis. [tvmouse.ucdavis.edu/mousebiology/...] chiasma The site where the exchange of chromosome segments between homologous chromosomes takes place (crossing-over) (pl.: chiasmata). PICTURE. chitin A polysaccharide contained in fungi; also forms part of the hard outer covering of insects.
Becoming a vegan requires you to make drastic changes to your diet. You have to eliminate anything of animal origin, which includes meat, seafood, cheese, milk, eggs, fish and gelatin. Vegan diets are naturally low in saturated and trans fats, reducing your risk of developing heart disease and related complications.
Dairy Products. A vegan diet excludes milk and dairy products, which are high in calcium, protein and potassium. Vegan substitutes include soy milk, soy or tofu yogurt, and soy cheese. To get adequate calcium, a 2,000-calorie vegan diet should include three servings per day of vegan alternatives to dairy products.