Search results
28 lis 2015 · The document summarizes the structure of DNA. It describes that DNA is composed of four nucleotides - adenine, guanine, cytosine, and thymine. These nucleotides are linked by phosphodiester bonds to form a double helix structure.
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.
11 wrz 2019 · 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. There are two types of bases: purines (adenine and guanine) and pyrimidines (cytosine and thymine).
17 lis 2014 · DNA TOPOLOGY • AFTER COMPLETING THE 13 IN-CLASS EXERCISES, TRY TO ANSWER THE FOLLOWING QUESTIONS: • (1) THE HELIX AXIS OF A CLOSED CIRCULAR DUPLEX DNA IS CONSTRAINED TO LIE IN A PLANE. THERE ARE 2340 BASE PAIRS IN THIS PIECE OF DNA AND, WHEN CONSTRAINED TO THE PLANE, THE TWIST IS 212.
1 sie 2014 · Structure of DNA – Levels of Complexity • Nucleotides = building blocks • Strand = covalently linked nucleotides in a linear fashion • Double helix = two strands twisted together • Chromosome = association of DNA with proteins to organize strands into a compact structure • Genome = complete complement of an organism’s genetic material
The document summarizes key concepts about DNA structure and function including: 1. DNA replicates in a semi-conservative manner where each new DNA molecule contains one old and one new strand. 2. DNA replication requires a DNA template, nucleotides, DNA polymerase, and energy.
Download ppt "DNA Structure." 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.
