: The Structure of DNA

dna structure  2 Each DNA strand is composed of nucleotides—units made up of a sugar , a phosphate group, and a nitrogenous base Each strand of DNA is a Salient Features of DNA Double-Helix · It consists of two polynucleotide chains where the sugar and phosphate group form the backbone and the nitrogenous bases

Within eukaryotic cells, DNA is organized into long structures called chromosomes Before typical cell division, these chromosomes are duplicated in the process What are the key differences between DNA and RNA? - Function - Sugar - Bases - Structure - Location Unusual types of DNA and RNA - Z-DNA

Chromosomal DNA consists of two DNA polymers that make up a 3-dimensional structure called a double helix In a double helix structure, the strands of DNA Molecular structure of DNA DNA, short for deoxyribonucleic acid, consists of nucleotides