Answer :
Based on the systems employed by the ENCODE project, about 75% of the genome is estimated to be transcribed at some point in at least one cell type. So the correct option is C.
What is the ENCODE project?
ENCODE stand for Encyclopedia of the DNA elements. It is aimed to help scientists understand more about the human genome, by making them understand biological language or the code that is present in the chemical letters of our DNA.
There are 3.2 billion letters in the human genome. The location of more than 20,000 genes was defined by the human genomic project. Specific instructions were identified that tell the cell about making proteins.
However, the genes small part of the physical genome. Thus, the ENCODE project is a project which is similar to spacing and punctuation. It involves experiments to determine the pieces of DNA that control the action and the storyline of the genome.
Therefore the correct option is C.
Read more about ENCODE project, here
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