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evangaeleon
14*2=28: 28% are t and a100-28=72: 72% are c and gthere are equal amounts of c and g because they pair with each other, so 72/2 = 36, 36% are guanine.
samueladesida43

If 14% of the nucleotides from a DNA molecule contain the base T, 36% will contain base G.

  • DNA molecule is made up of four nucleotide subunits namely: adenine, thymine, cytosine and guanine.

  • In the DNA molecule, adenine base pairs with Thymine while Guanine pairs with Cytosine i.e. A-T, G-C.

  • According to Erwin Chargaff, the amount of adenine present in the DNA molecule equals the amount of thymine. The same applies for guanine and cytosine.

  • A+T+G+C = 100%.

  • This means that if a DNA molecule contains 14% T, the amount of adenine will be also 14%.

  • 100% - 28% = 72%. This means that 72% belongs to both guanine and cytosine. Since they are present in equal amount, the percentage of guanine in the DNA molecule will be 72/2 = 36%.

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