In many organisms sex is determined genetically. Often this is accompanied by chromosomal differences between the sexes. Chromosomes, structures made of proteins and coiled DNA, contain all the genetic information of an organism.
What Are Sweetbreads? ccording to the Larousse Gastronomique, sweetbread is the culinary term for the thymus gland (in the throat) and the pancreas (near the stomach) in calves, lambs and pigs. Larousse further states that thymus sweetbreads are elongated and irregular in shape while pancreas sweetbreads are larger and rounded. But sweetbreads are neither sweet, nor are they bread. The word sweetbread was first used in the 16th century, but the reason behind the name is unknown.
Food Encyclopedia. Prized by gourmets throughout the world, sweetbreads are the thymus glands (called neck or throat sweetbreads) and pancreas (called heart, chest or stomach sweetbreads) of young animals, usually calf or lamb, sometimes pig. The former is elongated, the latter rounder and larger.he heart sweetbread is considered the more delectable (and is therefore more expensive) of the two because of its delicate flavor and firmer, creamy-smooth texture. Sweetbreads from milk-fed veal or young calves are considered the best.