What two components make up the backbone of DNA?
​Phosphate Backbone DNA consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.
What are the 2 backbone molecules?
The chemical backbones of the double helix are made up of sugar and phosphate molecules that are connected by chemical bonds, known as sugar-phosphate backbones. The two helical strands are connected through interactions between pairs of nucleotides, also called base pairs.
What two substances make the backbone of the DNA molecule quizlet?
What is the “backbone” of DNA composed of? Phosphate molecules and deoxyribose sugar. DNA backbones are made up of deoxyribose, a pentose sugar. These sugars are connected via a phosphodiester bond.
What makes up the backbone of DNA quizlet?
The backbone is comprised of alternating pairs of Sugars (Deoxyribose) and Phosphate groups. The rungs of DNA are comprised of pairs of Nitrogenous Bases. These bonds hold the nitrogen bases together.
What is the backbone of DNA made of?
sugar-phosphate backbone
A sugar-phosphate backbone (alternating grey-dark grey) joins together nucleotides in a DNA sequence. The sugar-phosphate backbone forms the structural framework of nucleic acids, including DNA and RNA. This backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.
Which substance composed the backbone of DNA?
phosphate groups
The backbone of a DNA molecule consists of the phosphate groups and the deoxyribose sugars, whereas the base region of the DNA molecule consists of the nitrogenous bases; therefore, the backbone of DNA is made up of phosphate groups and pentose sugars. Adenine is part of the base region of the molecule.
Which substance is composed the backbone of DNA?
deoxyribose
DNA stands for “deoxyribonucleic acid.” The backbone of DNA is comprised of alternating sugar and phosphate units, in which the sugar is deoxyribose. The backbone of RNA is also comprised of sugar and phosphate units, but uses the sugar ribose.
Which two molecules make up the backbone of the DNA molecule quizlet?
What is the “backbone” of DNA composed of? Phosphate molecules and deoxyribose sugar.
What is the backbone of a molecule?
Backbone, or main chain, is the general term used to describe the connecting chain in polymers. Different kinds of polymers have different chemical backbones. For example, in proteins the backbone is a polypeptide chain, but nucleic acids have a sugar phosphate backbone.
Which component of DNA forms the backbone of the molecule quizlet?
The deoxyribose and the phosphate groups form the backbone of the nucleic acid molecule.
What holds the 2 strands together in a helix?
The DNA double helix is held together by hydrogen bonds between the bases attached to the two strands.