From what you have learnt, can you tell whether enzymes are bigger or DNA is bigger in molecular size? How did you know?

A DNA molecule is always bigger than a protein, in size because a protein is the product of one or more mRNAs whereas these mRNAs are produced from DNA. For example, human DNA houses approximately about 30,000 genes which are used to produce all the different types of proteins required by the cell. Even after this the only transcribed region is the euchromatin region and not the heterochromatic region of the genome. Thus, the DNA molecule is certainly larger than a protein which is only a fraction of the translated DNA.


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