Phosphate Backbone - National Human Genome Research Institute
4 天之前 · A phosphate backbone is the portion of the DNA double helix that provides structural support to the molecule. DNA consists of two strands that wind around each other like a …
12.4.1: Nucleic Acid Structure - Chemistry LibreTexts
3 天之前 · The three-dimensional structure of DNA was the subject of an intensive research effort in the late 1940s to early 1950s. Initial work revealed that the polymer had a regular repeating …
9.1: The Structure of DNA - Biology LibreTexts
2022年3月17日 · The sugar–phosphate groups line up in a “backbone” for each single strand of DNA, and the nucleotide bases stick out from this backbone. The carbon atoms of the five …
What Makes Up the Backbone of DNA? | Science Lesson & Project
Learn what makes up the backbone of DNA. Learn its structure, how it replicates, how it's used, and try a DNA model science project! Check it out on HST.
DNA Structure and Functions - Science Facts
2023年9月13日 · According to Watson and Crick, the basic building block of DNA is the nucleotide, which consists of three parts: a sugar molecule called deoxyribose, a phosphate …
1.1: The Structure of DNA - Biology LibreTexts
The DNA bases extend from the backbone towards the center of the helix, with a pair of bases from each strand forming hydrogen bonds that help to hold the two strands together. Under …
DNA | Definition, Discovery, Function, Bases, Facts, & Structure ...
2025年1月14日 · DNA structure DNA structure, showing the nucleotide bases cytosine (C), thymine (T), adenine (A), and guanine (G) linked to a backbone of alternating phosphate (P) …
Biochemistry, DNA Structure - StatPearls - NCBI Bookshelf
2023年6月12日 · DNA’s sugar-phosphate backbone and helical structure make it more stable, less prone to damage, and more compact; however, the hydrogen bonds that hold the strands …
DNA Structure - Biology Dictionary
2021年1月21日 · Each DNA molecule contains two DNA strands, which are twisted around one another to make a spiral-like shape called the double helix. Together, the phosphate groups …
Types of DNA: a comprehensive overview of DNA structures
2 天之前 · This architecture gives Z-DNA a characteristic zig-zag arrangement of its sugar-phosphate backbone, making the structure more rigid than B-DNA. The formation of Z-DNA is …