Two polynucleotide strands make up a DNA molecule.
Which description is correct?
1 )
The percentage of cytosine is 50% of that of guanine in the whole molecule.
The percentage of cytosine is the same as that of guanine in the whole molecule.
3 )
The percentage of cytosine is the same as that of guanine in each strand.
4 )
The percentage of cytosine is the same in each strand of the molecule.
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