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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 ________.

You would expect shugoshin to be present at the ________ during ________.