Hydrogen bonds.
The two sides of DNA are the sugar-phosphate backbone, which provides the structural support for the molecule. The helix is held together by hydrogen bonds between the nitrogenous bases on each side of the DNA molecule.
The DNA strands are held together by hydrogen bonds between complimentary base pairs.
The two sides of a double helix of DNA are held together by hydrogen bonds between complementary base pairs (adenine with thymine, and guanine with cytosine). These bonds form a stable structure that allows DNA to maintain its shape and function properly.
Complementary strands of DNA are held together by hydrogen bonds connecting complementary bases.
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.
DNA is held together by hydrogen bonds between the nitrogenous bases adenine (A) and thymine (T), as well as cytosine (C) and guanine (G). These base pairs form the rungs of the DNA double helix, providing stability to the overall DNA structure.
The two chains of a DNA double helix are held together by hydrogen bonds between complementary base pairs. Adenine pairs with thymine, and cytosine pairs with guanine. These hydrogen bonds form the base pairs that hold the two strands of DNA together.
The two strands of a DNA molecule are held together by hydrogen bonds between complementary nitrogenous bases. Adenine pairs with thymine, and guanine pairs with cytosine. This base pairing allows the two strands to twist together in a double helix structure.
The two strands of DNA double helix are held together by hydrogen bonds between complementary bases on opposing strands. Adenine pairs with thymine, and guanine pairs with cytosine. These base pairs create the rungs of the DNA ladder, stabilizing the overall structure of the double helix.
Each rung of the DNA double helix is made up of a pair of nitrogenous bases (adenine-thymine or guanine-cytosine). The sides of the ladder are made up of alternating sugar (deoxyribose) and phosphate molecules. Hydrogen bonds hold the nitrogenous bases of the rungs together, creating the structure of the DNA double helix.
Not covalent, hydrogen-bonds.
The two sides of the DNA double helix ladder are made up of nucleotides. Each nucleotide consists of a sugar molecule, a phosphate group, and a nitrogenous base (adenine, thymine, guanine, or cytosine). The nitrogenous bases on opposite strands pair together through hydrogen bonding (adenine with thymine, and guanine with cytosine), holding the two sides of the ladder together.