polynukleotidkjeder
Polynukleotidkjeder are long chains of repeating units called nucleotides. Each nucleotide consists of three components: a phosphate group, a five-carbon sugar molecule, and a nitrogenous base. In DNA, the sugar is deoxyribose, and in RNA, it is ribose. The nitrogenous bases in DNA are adenine (A), guanine (G), cytosine (C), and thymine (T). In RNA, thymine is replaced by uracil (U).
These nucleotides are linked together by phosphodiester bonds, forming a sugar-phosphate backbone. This backbone provides structural
Polynukleotidkjeder are fundamental to all known forms of life. DNA serves as the primary carrier of genetic