Hydrogen bonds are one of the weakest bonds, and aren't even true bonding of molecules, but rather a magnetic attraction between them. This particular bond is what allows the base pairs of DNA to properly link, as Adenine and thymine bond, and cytosine and guanine bond, but neither of these pairs bonds with elements from the other pair in this way.
Hydrogen bonds
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.
When two strands of DNA that have exactly complementary base pairing (Adenine bonds with only Thymine, and Cytosine with Guanine) the base forms a hydrogen bond to the base on the opposite strand, only if the base pairing is complementary. So, in short the double helix form is held together by hydrogen bonds between the bases present on the strand. This means as the two strands are split apart, a new complimentary strand is formed against each, resulting in two identical double helices where there was just one before. It is by this means that the instructions for the code of life are copied and passed on.
The structure that holds two strands of DNA together after replication until metaphase of mitosis is the centromere. The centromere is a region of the chromosome where the two sister chromatids are held together and is essential for proper chromosomal segregation during cell division.
what holds the sides of the DNA ladder together
hydrogen bonds
Hydrogen bonds do this.
Hydrogen bonds that form between the nitrogenous bases hold the double helix together.
The chemical bond that holds together the complementary nucleotide bases in DNA is called a hydrogen bond. These bonds form between specific pairs of bases (A-T and G-C) and help stabilize the double helix structure of the DNA molecule.
Hydrogen bonding.
hydrogen bonding between the two bases present on two strands of dna hold the two strands. If there was no hydrogen bonding then doublex helix structure of dna would not be possible
Hydrogen bonds
hydrogen bonds
Hydrogen bonds.
Hydrogen bonds
hydrogen bonds
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.