deoksiribonukleosidi

Deoxyribonucleoside is a nucleoside composed of a deoxyribose sugar and a nucleobase. Deoxyribose is a five-carbon sugar that differs from ribose by the absence of an oxygen atom at the 2' carbon. The nucleobase attached to the deoxyribose is typically adenine, guanine, cytosine, or thymine. These deoxyribonucleosides are the building blocks of deoxyribonucleic acid (DNA). In DNA, the deoxyribonucleosides are linked together by phosphodiester bonds, forming a long polymer. Each deoxyribonucleoside unit in a DNA strand consists of a deoxyribose sugar, a phosphate group, and a nucleobase. The sequence of these nucleobases determines the genetic information encoded within the DNA. Examples of deoxyribonucleosides include deoxyadenosine, deoxyguanosine, deoxycytidine, and deoxythymidine. These molecules play a crucial role in the storage and transmission of genetic information within living organisms.