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If a dna molecule is made up of 42% guanine what percent of it would be adenine

User Feralvam
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8% is adenine. All 4 bases in DNA must equal 100%. So since guanine is 42% so is cytosine. Add those 2 to get 84. So 100-84=16 you divide by 2 for thymine and adenine and get 8%.

User Joseph Tary
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