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GC Nucleotide Content Ratio

adenine

guanine

thymine

cytosine

guanine-cytosine content: 0.5

	A
	G
	T
	C

This Demonstration represents how the number of nucleotides influences the guanine-cytosine (GC) content, which is the percentage of nitrogenous bases in a DNA molecule. Simply drag the contents of specific nucleotides and watch the GC percentage change next to the graph. The formula for the GC fraction is

(G+C)/(A+T+G+C)

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