Hydrogen bonds(:
Hydroqen bond
Hydrogen bonds
DNA is a double-stranded molecule twisted into a helix (think of a spiral staircase). Each spiraling strand, comprised of a sugar-phosphate backbone and attached bases, is connected to a complementary strand by non-covalent hydrogen bonding between paired bases. The bases are adenine (A), thymine (T), cytosine (C) and guanine (G). A and T are connected by two hydrogen bonds. G and C are connected by three hydrogen bonds.
The nitrogen bases bond A-T and C-G via hydrogen bonds. The bases are held together in the string by a backbone of alternating phosphate and sugar molecules.
hydrogen bonds
your teacher will probably accept hydrogen bonds, however it is more of an attraction not a physical bond
The paired bases are held together by hydrogen bonds. Refer to the related link below for an illustration.
Thymine and adenine! Also guanine and uracil.
Your answer is "Helicase". This is the enzyme responsible for the unzipping of the DNA molecule, or in other words, the breakage of the bonds of its nitrogen bases.
Hydrogen bonds
DNA is a double-stranded molecule twisted into a helix (think of a spiral staircase). Each spiraling strand, comprised of a sugar-phosphate backbone and attached bases, is connected to a complementary strand by non-covalent hydrogen bonding between paired bases. The bases are adenine (A), thymine (T), cytosine (C) and guanine (G). A and T are connected by two hydrogen bonds. G and C are connected by three hydrogen bonds.
The two strands of DNA are linked together by hydrogen bonds which occur between the nitrogen bases opposite one another along the molecule.
Base pairs in DNA are attached to each other via hydrogen bonds. The base pairs are attached to the backbone by covalent bonds.
Complimentary base pairs are paired as: A with T by 2 hydrogen bonds. C with G by 3 hydrogen bonds.
Polar bonds are types of covalent bond between two atoms in which electrons are shared unequally. Polar bonds can be created in Chemistry by having a molecule that has a higher affinity for electrons paired with another molecule with a lower affinity.
The nitrogen bases bond A-T and C-G via hydrogen bonds. The bases are held together in the string by a backbone of alternating phosphate and sugar molecules.
A DNA molecule is held together by its hydrogen bonds. The bonds are in between the bases of the molecule, for example cytosine and guanine. Because hydrogen bonds are weak, they are able to break apart easily and split when the molecule needs to be separated to bond with another DNA molecule for reproduction.
hydrogen bonds