0
What type of bonds holds the nitrogenous bases together in the DNA molecule?
Wiki User
∙ 6y ago
your teacher will probably accept hydrogen bonds, however it is more of an attraction not a physical bond
Eugene Kertzmann
Wiki User
∙ 13y agoBy nitrogen bases, do you mean the nitrogenous bases in DNA? If so, do you mean, what bonds are inside the bases, or what bonds hold pairs of these bases together in DNA? The bases themselves are constructed out of covalent bonds, but it is Hydrogen Bonding that holds pairs of these bases together. Hydrogen Bonds, despite their name, are not bonds like covalent bonds, but are a kind of intermolecular interaction that holds the nitrogenous bases of DNA together.
Wiki User
∙ 14y agohydrogen bonds [ which are very weak bonds]
Wiki User
∙ 11y agohydrogen bonds
Wiki User
∙ 8y agoHydrogen Bonds
Wiki User
∙ 13y agoHydrogen bond
Wiki User
∙ 11y agoHydrogen bond between the nitrogen bases.
Anonymous
Hydrogen Bonds
Add your answer:
Earn +20 pts
Why does a double stranded molecule denature into two single stranded molecules when heated?
The heat breaks the hydrogen bonds that hold the nitrogenous bases together in the centre of the DNA molecule. However, the covalent bonds between the phosphate and deoxyribose sugar are not affected.
What holds the two helixes in a DNA molecule together?
First off - it is important to understand that a nucleotide (the monomer of DNA) is composed of 3 things: a sugar, a phosphate group, and a nitrogenous base. Next - understand that the "backbone" of DNA is composed of the sugars and phosphates. That leaves you with nitrogenous bases. Hydrogen bonds form between the nitrogenous bases off opposite strands in the double helix. THIS is what holds the double helix together.
Te multiple relatively weak bonds between complementary nitrogenous bases that hold double stranded DNA together are known as?
Hydrogen bonds.
How are the nitrogen bases held together in the center of the DNA molecule?
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.
What makes up the middle of a DNA molecule?
The nitrogen bases make up the center of the two strands of a DNA molecule.
How are complementary nitrogenous bases held together?
hydrogen bonds
How do nitrogen bases form together?
Hydrogen bonds hold the nitrogenous base pairs together.
Why does a double stranded molecule denature into two single stranded molecules when heated?
The heat breaks the hydrogen bonds that hold the nitrogenous bases together in the centre of the DNA molecule. However, the covalent bonds between the phosphate and deoxyribose sugar are not affected.
What are the bondings is nitrogenous bases?
nitrogenous bases are held together with hydrogen bonds. adenine and thymine (or uracil) are held by 2 and guanine and cytosine are held by 3.
Which pair of nitrogenous bases will form a bond in a DNA molecule?
Complementary nitrogen bases pair by means of hydrogen bonds. Refer to the related link below for an illustration.
What kind of bonds hold the nitrogenous bases together in a stand of DNA?
I am pretty sure it is a hydrogen bond.
What is contained in nucleic acids?
Nucleic acids are polynucleotides. They are composed of nucleotides, which join together through phospho-diester bonds, with forms the sugar-phosphate backbone of the nucleic acid, and also through hydrogen bonds, between two complementary nitrogenous bases (in the case of DNA).The nucleotides which make up nucleic acids are composed of the following: a phosphate group (PO4), a deoxyribose sugar (in DNA) or a ribose sugar (in RNA) and finally a nitrogenous base. In DNA the purine nitrogenous bases are: adenine and guanine. The pyrimidine nitrogenous bases are: thymine (which bonds with two hydrogen bonds to adenine) and cytosine (which bonds with guanine through three hydrogen bonds. In RNA uracil replaces thymine and there are no hydrogen bonds between the nitrogenous bases as RNA is a single stranded molecule.
What holds the two helixes in a DNA molecule together?
First off - it is important to understand that a nucleotide (the monomer of DNA) is composed of 3 things: a sugar, a phosphate group, and a nitrogenous base. Next - understand that the "backbone" of DNA is composed of the sugars and phosphates. That leaves you with nitrogenous bases. Hydrogen bonds form between the nitrogenous bases off opposite strands in the double helix. THIS is what holds the double helix together.
Which macromolecule has a sugar-phosphate backbone?
Nucleic acids DNA and RNADNA has deoxyribose and phosphate forming the backbone and an attached nitrogenous base, These three components form a nucleotide.RNA has ribose sugar, phosphate and nitrogenous bases. The bonds holding the macromolecule together are covalent bonds within the nucleotides and hydrogen bonds holding the double strands of the DNA molecule.
What are the bonds that hold the nitrogenous bases together?
Nitrogen forms Triple Bond with its atom.. Hence forming N2
What are the parts of a DNA moleclue?
The parts of DNA molecule are nucleotide, bases, and the hydrogen bonds. The nucleotide contains a pentose sugar, phosphate group, and nitrogenous bases. Bases contain pyrimidine and purine and the hydrogen bonds holds the chains of nucleotides.
What type of molecules are bonded together by hydrogen bonds in DNA?
Nitrogenous bases are held together by hydrogen bonds, thus making them easier to separate during DNA replication.
