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What is the effect the substituent attached to the benzene ring below would have on electrophilic aromatic substitution reactions?    

When 4-methyl-4-heptanol is dehydrated by heating with sulfuric acid:

The following is a segment of a DNA strand. Identify the mRNA sequence that would result from transcription of this segment. Be sure to label both ends of the strand as well as identify the sequence of the strand. 5′ – TTCACTGGAACTG – 3′ 3′ – AAGTGACCTTGAC – 5′  

Which of the following possesses a repressor protein bound to its operator sequence in its natural state?

The enzyme responsible for laying down an RNA primer at the start of a new DNA strand is what?

Which of the following best describes how the Cas9 protein determines where to cut a DNA strand?

Which site of a ribosome releases tRNA molecules after they have added their amino acid to the growing polypeptide strand?

What polypeptide would result from the translation of an mRNA strand with the sequence listed below? Use the provided codon chart to determine the amino acid sequence – you may list the amino acids either by their three letter abbreviation or by their full name. You should also identify the N terminus and C terminus of the sequence. For students who need it, the long description for the codon chart is linked beneath the image.    5′ – AUG-UGC-AAG-GCA-UGA – 3′ Accessible Codon Chart Long Description.pdf   

DNA possesses what type of charge?

True or false: Prokaryotic cells need additional molecules, called transcription factors, to bind to a promoter sequence before transcription can begin.