Vitamin E and Alzheimer's Risk. A second study in the July issue of the Archives of Neurology shows that eating foods rich in vitamin E may help lower risks of developing dementia and Alzheimer's disease.
Ribose and Deoxyribose. The 5-carbon sugars ribose and deoxyribose are important components of nucleotides, and are found in RNA and DNA, respectively. The sugars found in nucleic acids are pentose sugars; a pentose sugar has five carbon atoms. A combination of a base and a sugar is called a nucleoside. Ribose, found in RNA, is a normal sugar, with one oxygen atom attached to each carbon atom. Deoxyribose, found in DNA, is a modified sugar, lacking one oxygen atom (hence the name deoxy).
Deoxyribonucleic acid (DNA) is the way genetic information is stored within cells and allows the transmission of information from one generation to the next. Chromosomes are found within the nucleus of most living cells and consist of DNA that is tightly wound into thread-like structures.Additional protein structures called histones support the DNA molecule within the chromosome.hromosomes and DNA. Deoxyribonucleic acid (DNA) is the genetic code that allows information to be transferred from one generation to the next. DNA molecules consist of two linear chains that are wrapped around one another forming a double helix structure.