Adenine, Thymine, Guanine and Cytosine.
DNA is composed of phosphate, proteins, nitogenous bases, sugar. they all maintain the structure of the DNA and are responsible for replicating the DNA accurately during replication.. for example; nitrogenous bases are correctly base paired i. e. A with T and G with C.
The nitrogenous bases in DNA are......AdenineCytosineGuanineThymine
There are 32 DNA bases in 8 DNA nucleotides.
There are 4 bases in DNA: adenine, thymine, cytosine, and guanine.
TACA
The bases in DNA are paired by hydrogen bonds.
A sequence of three nitrogenous bases in an mRNA molecule is called a codon. Each codon codes for a specific amino acid during protein synthesis.
DNA polymerase matches the bases on the parent strand.
Describe how each of the DNA nitrogen bases pair together
The enzyme responsible for adding complementary DNA bases to an exposed DNA strand is DNA polymerase.
The bases of mRNA coded for by a DNA segment are complementary to the original DNA sequence. If the DNA sequences are ATCG, the corresponding mRNA bases will be UAGC.
The spiral shape of it's double helix.The hydrogen bonds between the nitogenous bases of the nucleotides(3 between Cytosine & Guanaine and 2 between Adenine and Thymine).Nucleosomes also play a role in stabilising the DNA molecule (These are parts of the DNA that coil around the 8 Histone proteins).