So when transcribing from DNA to RNA, we synthesize RNA by using the nucleotides that are complementary to the nucleotides on the antisense DNA strands. So basically, if this is A, then we know this must be you. If this is cytositosine, this must be guanine. If this is adenine, this must be uracil. And if this is thymine, then this must be adenine, and so forth. So basically, when in the nucleus transcription takes place, the cell has no problem transcribing from our DNA to our RNA, because all it has to do is find the complementary nucleotide.