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Which piece of evidence below (a-d) best supports the hypothesis that protein structure and function are correlated? a) Denatured proteins can be renatured under the appropriate conditions. b) An enzyme can catalyze a reaction at 37 °C but cannot catalyze the same reaction at 42° C. c) Enzymes can consist of protein or RNA. d) When the primary structure of an enzyme is altered its quaternary structure is always altered. You isolate a nucleic acid from a cell. How do you determine whether you have isolated DNA or RNA? a) Look for the phosphate groups. b) Look for double stranded portions in the two molecules. c) Look at the presence of carbon in the molecule. d) Look at the hydroxyl groups on the 3' carbon of the sugar. e) Look at the pyrimidine content.
Which of the following is not an advantage of multicellularity?
The fist clinical trial that assess stem cells in transplantation setting is using HSCs for the treatment of heart attack. Why are HSCs used and not cardiac stem cells?
A person in the car accident shows the following symptoms: extreme paresis on right side, involving the arm and leg; reduction of the pain sensation on left side.
A young researcher at National Institute Health and interested in eye development, and hoping to find a cure to blindness in your lifetime
define how the rate of many enzyme catalyzed reactions varies with pH. What types of amino acids must be at the active site of an enzyme if its rate decreases at high pH.
Suppose you infect E. coli cells with two strains of T4 virus. One strain is minute (m), rapid lysis (r) and turbid (t); the other is wild-type for all three markers.
Explain physiological changes that occur in three different organ systems when food is ingested and how these systems coordinated a response in the human body.
Assume if the DNA in one of your skin cells were to change, which cells that are you would inherit that change?
Explain some of the major characteristics and functions of your immune system including various types of immunity such as active, passive, innate, or acquired immunity.
Would you expect the measurements to be equivalent in both preparations? If a variation in size is expected, how will you account for this difference.
The organism you select should be a real one however the evolutionary change in a trait which you explain can be real or fiction. Describe how the change in this trait takes place.
Assume your text provides an interesting explanation for the "dormitory effect", in which women living or sometimes working together tend to synchronize their menstrual cycles.
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