Compare the control of gene regulation in eukaryotes and prokaryotes in terms of: a. transcription b. regulatory mechanisms and its components

1. Suppose there was a mutation in the inducer of the lac operon, such that the inducer was unable to function. How would the lac operon be affected? Please explain your reasoning in 1-3 sentences.

1. What happens during transcription? Possible sentence frame: Transcription is the process in which the information from converted into This happens by is

1. Compare and contrast repressible and inducible operons. 2. Are genes for enzymes involved in anabolic processes usually repressible or inducible , why?

3. miR164 is a gene that encodes for a miRNA that targets a transcription factor. Describe in detail how, mechanistically, expression of miR164 could lead to altering the function of the transcription factor

1. The research done by Gregor Mendel is important because it showed a. physical traits in bacteria are determined by chromosomes. b. chromosomes in pea plants separate during cell division. c. DNA is present in bacteria. d. physical traits in pea plants are passed between generations. 2. Transcription of the lacZ and lacy genes of the lac operon begins when a. the repressor is released from the promoter b. the repressor protein binds to the inducer c. RNA polymerase binds to the lacZ gene d. lactose binds to the operator 3. During DNA replication, the function of RNA primers is to: a. serve as a binding site for DNA ligase b. serve as starting points for DNA strand elongation by DNA polymerase III in prokaryotes c. serve as starting points for DNA strand elongation by DNA polymerase I in the 3' - 5' direction d. open replication bubbles 4. Which statement about purines is true? a. Each purine is base pair with a pyrmidine. b. They are adenine and guanine. c. They are nitrogenous bases…

20. Genome imprinting can be the result of silencing genes by methylation of promoter DNA sequences. Which of the following is true? A. They directly inhibit RNA transcription. B. They directly inhibit protein translation. C. They directly inhibit nuclear pore transport. D. They directly inhibit ribosome assembly E. They reduce protein stability.