DNA is the abbreviation for deoxyribonucleic acid and consists of two polynucleotide chains that are linked together to form a double helix structure.
While nitrogenous nucleotides form the internal structure of DNA, the helix is held together in the ladder formation by two backbones of a sugar phosphate backbone.
What are nucleotides?
Nucleotides are essential biomolecules that form all living organisms; it is these nucleotides that form DNA.
DNA is made up of four nucleotides A: Adenine, C: Cytosine, G: Guanine and T: Thymine.
To forma strand of DNA, these nucleotides must work in pairs. A will only pair with T, and C will only pair with G, with these pairs linking together in a collection of pairs to form parts of our DNA to create different genes.
It is these sequences that determine the expression of different gene traits.
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