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SP A 2-month- old child is rushed to the hospital with difficulty breathing and seeming “floppy.” It is thought that she contracted the etiologic agent by exposure to raw honey used to encourage her to take a formula bottle. Which of the following bacteria is most associated with this presentation?

The Performance Improvement (PI) team was meeting to discuss the post-operative infection rate issues. Bob was assigned by the PI team leader to monitor the meeting agenda and watch the clock for adherence to the schedule.  In what capacity was Bob serving during this meeting for the PI team?  

BA A 27 year old man who has AIDS comes to the infectious disease clinic for the evaluation of skin lesions. Skin examination reveals multiple red to red/purple nodules and papules on several parts of his body. A CT scan of the abdomen reveals multiple nodular lesions within the spleen and liver. Histopathology of the skin lesions shows proliferation of the vascular endothelial cells, evidence of angiogenesis, and specialized staining shows clumps of bacilli present in the lesion. The lesions slowly resolves over a period of 6 to 8 weeks with an extended course of azithromycin antibiotic. Which one of the following is most likely the cause of this patient’s disease?

BA The bacterial surface structure that provokes phagocytosis or endocytosis to enter host cells describes which one of the following?

BA A 2 year old boy with a persistent cough is diagnosed with cystic fibrosis. A sputum specimen of green mucus was obtained and sent for Gram stain and culture. A Gram-negative rod was isolated that was subsequently identified as Pseudomonas aeruginosa. Which of the following properties is associated with this organism that will ultimately pose the greatest threat to the long-term survival of this patient?

Which of the following can function like a molecular “sponge” by binding to many microRNAs and preventing them from functioning?

MT All DNA viruses replicate in the nucleus EXCEPT which one of the following?

The GAL gene system discovered in yeast is an inducible system in which the presence of galactose induces expression of genes that are regulated by GAL4. For GAL4 to initiate transcription, what type of sequence must be present, adjacent to the gene(s) to be transcribed?

Usually, in the zygote, there is global demethylation of the DNA before cells begin to differentiate. If some regions of DNA escape this demethylation, and an allele from either the mother or father is silenced, what is this called?

In prokaryotes, which DNA polymerase is responsible for removing the RNA primers and replacing them with DNA?