guanine-cytosine
Guanine-Cytosine
Guanine an thymine
DNA base pair are Cytosine with Guanine and Thymine with Adenine.
Uracil would base pair with adenine on a RNA molecule.
In a DNA molecule, the nucleotide pairs that bond together are adenine (A) with thymine (T) and cytosine (C) with guanine (G). These base pairs form the rungs of the DNA double helix structure through hydrogen bonding.
A nucleotide consists of a base pair ( A with T, C with G) with a sugar phospate molecule
A nucleotide in DNA consists of a sugar (deoxyribose), a phosphate group, and a nitrogenous base. The pair of molecules that would most likely be found in a nucleotide are deoxyribose (a sugar molecule) and a nitrogenous base (such as adenine, cytosine, guanine, or thymine).
Nucleotide pairs bond in the center of the DNA molecule, forming the double helix structure. Specifically, adenine pairs with thymine and guanine pairs with cytosine through hydrogen bonding. This complementary base pairing allows DNA to replicate accurately.
Guanine will pair with cytosine through three hydrogen bonds in DNA and RNA.
Lone pair repulsion affects the molecular geometry of a molecule by pushing other atoms and bonds away, leading to changes in bond angles and overall shape of the molecule.
In a DNA molecule cytosine always pairs with guanine, the same is true for an RNA molecule.
Ammonia can form four hydrogen bonds per molecule. The lone pair on nitrogen can accept one hydrogen to form a hydrogen bond, and the three hydrogen atoms can bond to lone pairs to form three additional hydrogen bonds. However, if ammonia is the only molecule present, this bonding pattern is problematic because each molecule only has one lone pair per three hydrogen atoms. Thus, an average molecule would likely only have two hydrogen bonds, out of the maximum of four.