A. not significant
B. only marginally significant
C. totally significant
D. significant to much extent
The question was asked in a national level competition.
Query is from Protein in division Global Approaches for Studying Protein – Protein Interactions of Bioinformatics
Best explanation: In prokaryotes, genes are co-regulated if they are a member of the same operon, and many proteins that are members of the same stable complex are part of the same operon. For instance, Ouzounis and Karp determined that over 90% of the enzymes that are in stable complexes in E. coli metabolic pathways are adjacent on the E. coli chromosome.