This image shows DNA replication. The ori (origin of replication) is indicated by the circle labeled “ori”.  Which of the labeled Okazaki fragments (A – D) was made first after the start of DNA replication?

You go camping and you run out of bottled water. You decide to fill up the water bottles in the stream since the water looks clear. The next day you start to feel ill and you send the water off for testing. The results state there is Giardia (a microbe) in the water, which means you likely got sick how?

What type of mutation is represented by the following? Original RNA sequence:                 ACC  GCA  UCA  GGU  AUA Mutated RNA Sequence:               ACC  GCA  UCC  AGG  UAU  A  

If you made-out with somebody at a random party and then 1 month later developed a blister on your upper lip, could you attribute your make-out session as the cause of your blister?

Which of the following is TRUE about the lytic cycle of a bacteriophage?

Which type of cell contains an MHC II complex bound to a foreign antigen?

What type of cell secretes cytokines?

What keeps the two strands of DNA in the double helix held together?

Your friend had a Pseudomonas (a gram negative bacterium) infection and was sent to the hospital. When doctors administered antibiotics your friend went into septic shock rather quickly. The doctors said that the septic shock was a result of an endotoxin. Which of the following provides the best explanation of what happened?

If a host cell’s peroxidase enzyme is not working it could be due to a bacterial infection. The pathogen in question probably produces a ____________________ that binds the iron needed for peroxidase activity.