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.
To keep your diet vegan, check food labels to avoid these lesser-known animal-based ingredients: 1  Albumen: Made from eggs, milk, and animal blood. 2  Bone char: Derived from animal bone ash. 3  Carmine or cochineal: Red pigment made from crushed beetles.  Casein: A cowâs milk 1  protein. Methionine: Essential amino acids made from eggs or cowâs milk.