Do the same mechanisms that govern gene expression operate in bacterial cells and eukaryotic cells?  Explain your answer.

Think of the eukaryotic gene expression process. Which column below accurately describes which components of the gene are translated by ribosomal complex? Component A В D Ribosomal binding site Yes No No Yes Promoter Yes Yes No No Exons Yes Yes Yes Yes Introns No Yes No No C O A

The protein produced by the gene represented in Figure 4 participates in the development of two body structures: the mouth and the pelvis. During the adult stage of this organisms the gene is turned off by histones. However, if any organism suffers an injury in the mouth, the gene becomes active again and participates in the wound healing process. Briefly explain a molecular mechanism that could allow the organisms to turn on this gene again. FIGURE 4: Regulatory sequence Regulatory sequence Enhancer 1 Isilencer Open reading frame Enhancer 2 /silencer Promoter S'UTR JUTR Proximal Core Start Stop Terminator DNA TATA Exon 1 Exon 3 Exon 2 intron Intron