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2 mar 2012 · This document discusses the structure, properties, and functions of DNA. It describes DNA as a polymer composed of deoxyribonucleotides that carries the genetic information found in chromosomes, mitochondria, and chloroplasts.
9 lut 2014 · It describes the key components of DNA including the sugar-phosphate backbone, nitrogenous bases, and how the bases pair up in the double helix structure. It also discusses different DNA structures like A, B and Z-DNA and how DNA packages into nucleosomes and chromosomes.
DNA is a large molecule made of small parts called nucleotides. Each nucleotide contains three parts: 1. sugar (deoxyribose) 2. phosphate group 3. nitrogen base (any of 4, adenine, thymine,...
20 lut 2019 · The primary function of DNA is to serve as the template for its own replication and transcription into RNA to direct protein synthesis. DNA is a double-stranded molecule that forms a helical structure. It is composed of nucleotides, each containing a phosphate group, deoxyribose sugar, and a nitrogenous base.
3 sie 2023 · The most widely accepted structure of DNA is right-handed helix DNA also known as the B-form of DNA, which is 1.9 nm in diameter. These helical chains run anti-parallel to each other, one polynucleotide chain runs from 5’ to 3’ and the other polynucleotide chain runs from 3’ to 5’.
DNA Structure Backbone. The DNA molecule consists of 4 nitrogen bases, namely adenine (A), thymine (T), cytosine (C) and Guanine (G), which ultimately form the structure of a nucleotide. The A and G are purines, and the C and T are pyrimidines. The two strands of DNA run in opposite directions.
DNA Structure DNA consists of two molecules that are arranged into a ladder-like structure called a Double Helix. A molecule of DNA is made up of millions of tiny subunits called Nucleotides. Each nucleotide consists of: Phosphate group Pentose sugar Nitrogenous base.
