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Salmonella enterica Typhimurium produces endotoxin. A student performs a Gram stain on the organism and observes Gram positive cells. The student must have made an error during the Gram stain process. 

One of the main differences between eukaryotes and prokaryotes is the presence/absence of what structure?

A student performs a Gram stain on a mixed culture and leaves the decolorizer on the slide for 30 seconds. Based on your knowledge of the Gram stain procedure, Gram-positive organisms will appear __________ and Gram-negative organisms will appear __________ under the microscope.

If the decolorizer is NOT left on the specimen long enough in the Gram-staining procedure, Gram-positive organisms will be stained __________ and Gram-negative organisms will be stained __________ after the decolorizing step.

Penicillin and penicillin derivatives target what cellular processes?

      Based upon the information above, organisms A belongs to which category:

During DNA replication an ________ reaction occurs, causing a ________ molecule to act as the leaving group.

A transposon and retrotransposon differ in that

According to the traditional model of DNA replication, two helicases will ________ and function as ________.

You would expect shugoshin to dephosphorylate ________ rings found at the ________.