A)
Source Adenine Cytosine Guanine A 19.7 30.4 30.2
B)
Source Adenine Cytosine Guanine B 25.5 24.6 23.8
C)
Source Adenine Cytosine Guanine C 26.7 28.8 22.3
D)
Source Adenine Cytosine Guanine D 31.1 18.3 18.7
Correct Answer: C
Solution :
In the DNA molecule, the width between the 2 backbones is equal to the width of 1 base pair, i.e. 1 purine and 1 pyrimidine. |
In DNA, the bases pair with complementary bases of the opposite chain via hydrogen bonds, adenine to thymine and cytosine to guanine. |
Thus, the number of \[G=C,\]number of\[A=T\]. |
Hence, when the percentage concentration of cytosine is similar to guanine, this suggests that source is DNA. |
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