If in a nucleic acid there are more than 8000 nucleotides it is most likely
A
RNA
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B
DNA
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C
Both A and B
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D
None of the above
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Solution
The correct option is B DNA DNA molecules are typically large molecules. Entire DNA molecule does not code for proteins. Only a small portion of DNA actually codes for proteins. The protein coding is a two step procedure. In the first step, DNA is transcribed into RNA and in the next stage, RNA is translated into proteins. As RNA is derived from the coding region of DNA, typically RNA is much smaller than the molecule of DNA.