Shelly and John have an exciting relationship. They go on thrilling adventures and share intense moments of passion. However, they also frequently have intense arguments and both of them feel insecure in their relationship. Based on how well Shelly and John are meeting their approach and avoidance goals, what type of relationship do Shelly and John have?

Which of the following is not directly involved in the disruption of microbial membranes?

Compound Y was added to a tube of naïve T lymphocytes, resulting in the production of IL-2 and up regulation of the high affinity IL-2 receptor. Based on this statement, which of the following statements is LEAST likely:

Which of the following statements regarding T cell epitopes is most correct?

 what is this molecule

what is this molecule  

which of the following DOES NOT usually promote transcription 

Which of the following molecules would most likely be present on the surface of a eukaryotic cell?

Protein J, consisting of several disulfide bonds, was injected IP into a rabbit. After about a week, blood was taken from the rabbit, and left on a counter for about four hours, which made the blood clot. The clotted blood was centrifuged to remove the clots and the remaining liquid was divided into two parts (aliquots). One of the aliquots was first incubated with protein J which had been pretreated with mercaptoethanol, while the second was left unaltered. After an hour, both aliquots were centrifuged to remove any soluble components present and then subjected to electrophoresis. The electrophoretic mobility profile of both aliquots was essentially identical. Which of the following statements below provides the most reasonable explanation for what occurred?

Fc RI is most likely present on which of the following cell types (greek symbol is epilson if it does not appear)?