adenine (A) uracil (U) guanine (G) cytosine (C) The nitrogenous bases of RNA are the same as DNA except RNA has uracil instead of thymine.
Celery (Apium graveolens) is a cultivated plant, variety in the family Apiaceae, commonly used as a vegetable. Depending on location, either its stalks, or its hypocotyl, are eaten and used in cooking.In North America the dominant variety most commonly available in trade is celery, Apium graveolens var.elery is used around the world as a vegetable. In North America for the crisp petiole (leaf stalk). In Europe the hypocotyl is used as a root vegetable. The leaves are strongly flavoured and are used less often, either as a flavouring in soups and stews or as a dried herb.
Celeriac is a root vegetable with a bulbous hypocotyl. In the Mediterranean Basin and in Northern Europe, celeriac grows wild and is widely cultivated. It is also cultivated in North Africa, Siberia, Southwest Asia, and North America.In North America, the Diamant cultivar predominates.eleriac (Apium graveolens var. rapaceum), also called turnip-rooted celery or knob celery, is a variety of celery cultivated for its edible roots, hypocotyl, and shoots. It is sometimes called celery root. It was mentioned in Homer's Odyssey as selinon.