In DNA, adenine pairs with thymine, and guanine pairs with cytosine. In RNA, adenine pairs with uracil, and guanine pairs with cytosine.
bcz it has lone pair of electrons on nitrogen atom tht is y it can donate an electron pair so it is lewis base
There are 7 nitrogen atoms in the base pair A-T.
The nitrogen bases of DNA pair up according to specific base-pairing rules: adenine (A) pairs with thymine (T) and guanine (G) pairs with cytosine (C). This base pairing forms the rungs of the DNA ladder structure, with hydrogen bonds holding the pairs together.
There is one lone pair of electrons on the nitrogen atom.
CYTOSINE!
Guanine
Nitrogen base
Thymine can pair with adenine in DNA, while uracil can pair with adenine in RNA.
It means which nitrogen base pairs with the other Nitrogen bases: A-t T-a C-g G-c
3 bondings + 1 electron pair = 4 (electron domains)
bcz it has lone pair of electrons on nitrogen atom tht is y it can donate an electron pair so it is lewis base
Base pair
The nitrogen bases are held together by hydrogen bonds.
A Nitrogenous (nitrogen-containing) base is a nitrogen-containing molecule having the chemical properties of a base.It is an organic compound that owes its property as abase to the lone pair of electrons of a nitrogen atom.
Base activity depends on the availability of the lone pair on the nitrogen for protonation. With two phenyl groups also on the nitrogen it is difficult physically for the hydrogen to access the lone pair, and the lone pair is also conjugated with the pi systems of the two benzene rings, reducing its density, meaning that it is less available to be protonated.
Ammonia is a stronger base than nitrogen trifluoride. This is because ammonia has a lone pair of electrons that can readily donate to a proton, making it a better proton acceptor, whereas nitrogen trifluouride is less basic due to its electron-withdrawing fluorine atoms.
There are 7 nitrogen atoms in the base pair A-T.