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I want to test a drug to determine if it increases a student’s ability to remember important facts throughout the semester.  At the start of the semester, I give one group of 20 students a pill that contains the drug, called KnowItAll, and I give another group of 20 students a placebo (a pill that does not contain any drug).  On the final exam, I see that the students given KnowItAll have an average score of 95% on the exam, while the students given the placebo have an average score of 50% on the exam.  I conclude that KnowItAll does not improve student’s ability to remember important facts.  What is wrong with this experiment?

Use the given genetic code to answer the question:   What is the amino acid sequence of the protein coded from the following mRNA molecule: 5’-AUGUUAAAGGGG-3’

I promise that while taking the test, I will not use any external sources (textbook, lab manual, websites, other students, etc).  I will also not assist any other students while they are taking the test. I understand that if I plagiarize, copy answers, help other students on the test, or receive help from other students on the test, I will get a 0 on the test for my grade, and will have to report to the Dean of Student Services for disciplinary action.

An activator of phosphodiesterase activity would have which of the following effects?

Use the information about these neutral atoms from the following figure to answer the question:   How many grams of NH2COOH would be found in 1 L of a 1 M solution?

Which chemical bond connects nucleotides together in nucleic acids?

The extracellular matrix is thought to participate in the regulation of animal cell behavior by communicating information from the outside to the inside of the cell via

What is the function of chaperonins?

What is the purpose of glycerol in loading dye when doing gel electrophoresis?

Light wind and rain are usually found near the center of a high pressure system.