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Nucleic acids: nucleotides, DNA and RNA
JEE Main level
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Difficulty 2 of 3
bm206
A double-stranded DNA sample contains 28% adenine by number of bases. According to Chargaff's rules, the percentage of guanine is
A
28%
B
22%
C
44%
D
56%
Answer: B
A = T = 28%, so A + T = 56%. G + C = 44%, and G = C gives G = 22%.
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