In one form of genetic regulation, proteins called transcription factors bind to _____, thus facilitating the work of _____.
a. ribosomes ... transfer RNA
b. messenger RNA ... ribosomes
c. non-coding DNA sequences ... RNA polymerase
d. coding DNA sequences ... RNA polymerase
e. transfer RNA ... ribosomes
Adv.
The enzyme RNA (ribonucleic acid) polymerase carries on transcription of genes. It will be loaded onto the coding region of DNA (deoxyribonucleic acid), which is facilitated by the binding of some proteins to promoter. These proteins are called transcription factors.
Further, the activity of RNA polymerase is also regulated by some other proteins that bind to enhancer. Both the promoter and enhancer are non-coding DNA sequences. Thus, the gene is regulated by the binding of transcription factors to the non-coding DNA sequences.
Hence, the correct option is (c).