The DNA molecule contains 29% adenine. Determine how many (in%) this molecule contains other nucleotides.
| September 22, 2021 | education
According to the principle of complementarity in the DNA molecule, the number of adenine (A) nucleotides is equal to the number of thymine (T) nucleotides. It turns out:
A + T = 29% + 29% = 58%
The share of guanine (G) and cytosine (C) nitrogenous bases remains:
100% – 58% = 420%
Again, according to the principle of complementarity, the number of guanine nucleotides is equal to the number of cytosine nucleotides.
42%: 2 = 21%.
Answer: in the DNA molecule there are 29% thymine nitrogenous bases, 29% adenine bases, 21% guanine bases, 21% cytosine bases.
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