When the immune system is activated, several forms of interleukin (IL) are released. In one scenario, IL-2, IL-4, and IL-5 are released, and each of these signals for B-cell differentiation. What kind of messaging signal is this?

What are the major post-transcriptional modifications that happen to eukaryotic RNA before it is released as mRNA? (Mark all that apply.)

Transcription is the process by which ________.

pick A

When fingerprinting an individual, you run their DNA out on a gel in order to get a banding pattern. What do you probe for to light up specific bands?

Which of the following accurately describes the path travelled by a new protein as it is synthesized and released from the cell?

What did Dr. O’Neill say was one of the most important scientific discoveries in the last century for human health?

Refer to the graph and info for questions 39–42. Image Description  A stepwise graph, also known as an energy diagram depict changes in free energy (ΔG) as a reaction proceeds from start to finish. The y-axis is labeled as ‘free energy (kcal/mol)’ and the x-axis represents ‘time’, suggesting the progression of a chemical reaction. Five distinct stages are marked along the graph’s course with the letters A to E, each representing a different energy state within the reaction. The graph begins at a point labeled ‘A’ below the baseline, indicating an exothermic reaction initiation, rises to ‘B’, then to a higher point ‘C’, drops to ‘D’, and finally goes up again to ‘E’, indicating the end of the reaction. The stepwise nature suggests that there are intermediate stages or transition states that the reaction passes through before reaching completion. In a metabolic pathway, a series of enzymatic reactions catalyzes the conversion of molecule A to molecule E. Several intermediate steps are involved in which the product of one reaction becomes the substrate for the next. The graph illustrates the changes of free energy that occur at each step in the pathway.

You are a doctor, and a patient suffering from severe diarrhea and dehydration comes to see you. Which of the following diseases would this patient most likely have?

What is Hardy Weinberg’s equation?