Generally hydrogen bonds between the different base pairs holds the double helix together.
Hydrogen bonds
Hydrogen bonds that form between the nitrogenous bases hold the double helix together.
The two halves of a DNA double helix are held together by hydrogen bonds between complementary nitrogenous bases. Adenine pairs with thymine and guanine pairs with cytosine. This base pairing allows for the specificity and stability of the DNA molecule.
The weak chemical bond important in holding the DNA double helix together is the hydrogen bond. These bonds form between the nitrogenous bases of the two DNA strands, specifically between adenine and thymine, and guanine and cytosine. The hydrogen bonds provide stability to the double helical structure of DNA.
Hydrogen Bonds are the bonds that hold the complimentary bases together. G to C and A to T. However the bonds that hold the nucleotides together on each side of the double helix are called Phosphodiester bonds or linkages.
The chemical interaction that holds two strands of a DNA double helix together is hydrogen bonding. Adenine pairs with thymine, and guanine pairs with cytosine through specific hydrogen bond interactions, forming the base pairs that stabilize the double helical structure of DNA.
Hydrogen bonds hold together the two strands of DNA. These bonds form between specific base pairs: adenine (A) with thymine (T), and guanine (G) with cytosine (C), creating the double helix structure of DNA.
The two strands of DNA are held together by hydrogen bonds between the nitrogen base pairs.
Hydrogen bonds hold the nitrogen bases together in DNA. These bonds form between complementary base pairs, such as adenine-thymine (A-T) and cytosine-guanine (C-G), stabilizing the DNA double helix structure.
First off - it is important to understand that a nucleotide (the monomer of DNA) is composed of 3 things: a sugar, a phosphate group, and a nitrogenous base. Next - understand that the "backbone" of DNA is composed of the sugars and phosphates. That leaves you with nitrogenous bases. Hydrogen bonds form between the nitrogenous bases off opposite strands in the double helix. THIS is what holds the double helix together.
Adenine pairs with Thymine Guanine pairs with Cytosine
DNA bases are held together by hydrogen bonds. Adenine pairs with thymine through two hydrogen bonds, while guanine pairs with cytosine through three hydrogen bonds. These interactions contribute to the stability of the DNA double helix structure.