Nucleotides in both DNA and RNA are bound by phosphate ester bonds. See the following link for a detailed discussion: http://www.ncc.gmu.edu/dna/structur.htm
the nucleotides are jointed to one another by a covalent bond between the sugar of one nucleotide and the phosphate of the next
they bind in what's called a phosphodiester bond, the bond between the phosphate group and deoxyribose of each nucleotide.
If you compare the DNA double helix to a twisted ladder, the nucleotide pair bonds would be the rungs of the ladder.
Covalent bonds that sugar as one of one nucleotide to the next bond is together done come together as a DNA strand. This is taught in science.
proton bond
C5 is bound to that nucleotides own phophate group. C3 is bound to the phosphate group of the nucleotide before it by a covalant link creating a srong "backbone"
There are covalent bonds found in TTX and a covalent bond is a sharing of two electrons between two atoms in a molecule.
Thymine is one of the four possible bases which, when attached to a phosphate group and a molecule of deoxyribose, forms a nucleotide; nucleotides are the monomer units of DNA.
Adenine pairs with Thymine by a double hydrogen bond
glycosidic bond
Bond the Nucleotide together
The bond in the molecule is covalent.
Covalent bonds that sugar as one of one nucleotide to the next bond is together done come together as a DNA strand. This is taught in science.
double covalent bond
covalent bond
hydrogen bonds
The water molecule has a polar covalent bond.
proton bond
Hydrogen bonding of nucleotide across to nucleotide.
A group of two or more atoms held together by chemical bonds would be termed a molecule.