How many nitrogenous bases are there?

Answer 1

There are four bases in DNA; adenine, thymine, cytosine, and guanine and in the rare case Uracil can also exist in the DNA. But Uracil DNA glycocylase normally cut it and helps to replace T base by DNA polymerase.

But when there is low ration of T over U, DNA polymerase never mind to add U in place of T. This will inturn activates a specific mode of cell death due to hyper Us.

Answer 2

There are four different kinds of nitrogenous waste present in DNA.

Thymine -> Adenine

Guanine -> Cytosine

These are the only combinations which could possibly occur, other than ging from

A -> T instead of T -> A or C -> G instead of G -> C :)

Answer 3

4 nitrogen bases- Adenine, Thymine, Cytosine, Guanine

Answer 4

698 to be exact!

Answer 5

Four, adenine, thymine, cytosine and guanine.

Answer 6

Four.

Uracil

Adenine

Guanine

Cytosine

Answer 7

4 your welcome my bitchesss

Answer 8

4