In one DNA molecule, the adenine nucleotide (A) makes up 20% of the total number of nucleotides
| February 2, 2021 | education
In one DNA molecule, the adenine nucleotide (A) makes up 20% of the total number of nucleotides. Determine the amount in% of each of the other types of nucleotides.
The DNA molecule contains: adenine (A), thymine (T), cytosine (C), guanine (G). This will be 100% nucleotides. According to the rule, the number A = T, and the number G = C. Means:
1) 20% adenine (A) = 20% thymine (T).
20% + 20% = 40% of total A and T.
2) 100% – 40% = 60% remaining nucleotides.
Now we will find cytosine (C) and guanine (G), for this we need to divide the remaining nucleotides by 2.
3) 60%: 2 = 30%.
Therefore, T and A are 20% each; C and G 30% each.
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