Prokaryotes are lacking. in their DNA sequence. A. introns B. exons. O C. promoter sites D. operons

Protein Z in the figure below depicts the activity of which bacterial Nucleoid Associated Protein that may silence gene promoters (select one)?  A. Protein HU  B. Histone H3  C. Dps  D. Integration Host Factor  E. H-NS

Which of the following DNA elements or proteins would you expect to find only in some cells in a organism?    A. The enhancer for gene Y B. The transcription factor that activates gene Y C. A general transcription factor protein  D. A and B E. The promoter for gene Y

The experimental growth of an eye on the leg of a fruit fly is most famous for providing direct evidence that________ Select one: a. proteins are involved making eyes b. genes are involved in making eyes c. one operon can control many genes d. genes are regulated via negative feedback e. that one transcriptional factor can regulate many genes