Best Answer: Probably the same as any other major... probably even shorter than some (such as pre-med), so 4 years. For my school, you need Intro, Research Methods ...
Digestion of foods in the small intestine. The small intestine continues the process of digestion and various enzymes are present there to break starches down further. These enzymes are called disaccharidases. The best known is lactase, which is the enzyme necessary to digest milk sugar. This enzyme is normally present in all young mammals who need this to digest mother's breast milk. With age and as breast feeding finishes, production of this enzyme ceases for life.
Lactose intolerance is the decreased ability to digest lactose, a type of sugar found in the milk of mammals such as cows and goats as well as in human breast milk. It is also an ingredient in other dairy products such as cheese, cottage cheese, yoghurt, ice cream, and butter.utations of the LCT gene result in congenital lactase deficiency and are an autosomal recessive inheritance, thus requiring one mutated gene from each parent. This is a rare form of lactose intolerance that begins at birth and severely inhibits a baby's ability to digest milk or milk-based formulas.