DNA methylation is a process by which methyl groups are added to the DNA molecule. Methylation can change the activity of a DNA segment without changing the sequence. When located in a gene promoter, DNA methylation typically acts to repress gene transcription.
The endomembrane system has the different membranes that are suspended in the cytoplasm within a eukaryotic cell. The membranes divide the cell into functional and structural compartments, or organelles.
I disagree with the current answer. I believe the answer is the one you have selected. This is because the three domains of life are separated into 3 categories, bacteria, archeabacteria, and eukaryotes. Archeabacteria are prokaryotic, and possess no true nucleus.
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Perception...
Hope this helps you.
