What makes up the backbone of DNA quizlet?
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 makes up the steps of the DNA ladder?
The inside of the molecule, the “steps” of the staircase, are made of the nucleotide bases Cytosine, Guanine, Adenine, and Thymine. C bonds to G by three hydrogen bonds.
What make up a DNA backbone?
​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. Attached to each sugar is one of four bases–adenine (A), cytosine (C), guanine (G), or thymine (T).
What is the backbone of the DNA structure?
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.
What is the backbone of DNA structure?
What parts of the nucleotides make up the backbone of the ladder?
The sugar and phosphate group make up the backbone of the DNA double helix, while the bases are located in the middle. A chemical bond between the phosphate group of one nucleotide and the sugar of a neighboring nucleotide holds the backbone together.
What parts of the nucleotides make up the sides backbone of the ladder?
What parts of the nucleotides make up the sides (backbone) of the “ladder”? Sugar and phosphate.
What are the sides of DNA ladder made of?
The sides of the ladder are made of alternating sugar and phosphate molecules. The sugar is deoxyribose. The rungs of the ladder are pairs of 4 types of nitrogen bases. Two of the bases are purines- adenine and guanine.
