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Use this space to indicate what you did for either question above to potentially earn partial credit. 

Which of the following would be most soluble in water, a polar solvent? 

What is the correct sequence of events in cloning a gene into a plasmid? 1. Use ligase to “glue” the inserted gene into the plasmid2. Identify a restriction site in a plasmid and add it to the gene-fragment ends3. Force bacterial cells to take up the plasmid from the environment4. Add restriction endonuclease to cut the plasmid and gene fragments

An E.coli cell acquires a mutation in the lacI gene that results in permanent repression of the lac operon. Which of these would characterize such a mutant?

REQUIRED- You will want to draw the Lewis structure of CS2 on your scrap paper before beginning.  From the Lewis structure of CS2 answer the following:  A. Describe the Lewis structure of the molecule and determine what the molecular geometry (name the shape) of the molecule would be?    Bonus- B. Would CS2 be a polar or non-polar molecule?

Calculate the pH of the following solutions of strong acid or strong base:  0.0085 M HCl

Determine the chemical formula if the following combined to form an ioniccompound- if the ions are not written- you must first determine what charges the atoms become when they become an ion- then determine the correct ratio of cation to anion- where electroneutrality will exist.   Al3+ and PO43-   Be sure to use the subscript and superscript feature to correctly express the formula in the correct format. 

Which of the following regulatory elements is NOT a sequence of DNA?

Which amino acid would be attached to the tRNA molecule shown below?

A researcher is studying the effects of increasing the amount of acetylation of histone tails in a culture of human cells. Which of the following results would she most likely see?