Hydrogen bonding holds together the two strands of a double stranded DNA. Hydrogen bonding exists between the nitrogen base pairs.
Hydrogen bonds that form between the nitrogenous bases hold the double helix together.
The two strands of DNA are held together by hydrogen bond.
Hydrogen bonds.
Hydrogen bond
DNA strands are held together by hydrogen bonds.
covalent bond
Covalent Bond
hydrogen bonds
polar covalent bond
Hydrogen bonds do this.
DNA strands are held together by hydrogen bonds.
glycosidic bonds
hydrogen bonds
hydrogen bonds
Metallic bond
Covalent Bond .
Covalent Bond
covalent bond
Hydrogen bonds
Covalent bond.
The bond in water is covalent.